Category: networks

Lib Dems: not quite useless

So, Wired writes up three West Point professors and their algorithm to decide which members of a terrorist network to zap. Apparently they implemented it in 30 lines of Python. The paper is here, with some pseudocode and the tantalising hint that they used NetworkX, but no Python. However, even the Wired piece tells us enough to reverse engineer it.

The key idea here is that whacking terrorist leaders is often stupid, because it causes the enemy to adopt a flatter, more decentralised, and therefore less vulnerable network structure. Also, they point out, the leaders are often forces for restraint and points of contact for negotiation.

Being who they were, they decided that they could fix this with a better optimisation. They looked at the network-wide degree centrality, a measurement of the centralisation or otherwise of the whole network which is defined as the fraction of total nodes in the network an average node is connected to. They then asked how this changed when they removed a node from the network. And they reasoned that increasing it was desirable, as it rendered the network overall more fragile and unstable.

Now, the Lobster Project uses weighted betweenness centrality – the fraction of the shortest routes through the network that pass through a given node, with more important nodes being accounted for as such – as its centrality metric. There is no particular reason to think that this would work differently.

So I thought I’d implement it. Their implementation used 30 lines, but I presume that includes the test harness to generate or load a specimen network as well as the analysis. Here goes:

def greedy_fragile(mgraph, month, mini, nodes):
...network_wide_centrality = float(sum(nodes.values())/len(nodes.values()))
...mgraph.remove_node(mini[0])
...n = centrality_nodes(mgraph)
...nwc = float(sum(n.values())/len(n.values()))
...mgraph.add_node(mini[0], mini[1])
...return {'Minister': mini[0], 'Title': mini[1]['Title'], 'Department': mini[1]['Department'], 'Date': month, 'Greedy_Fragile': network_wide_centrality - nwc}

mgraph is the NetworkX graph object, month is the month, mini is the minister (or lobby), nodes is the precomputed list of nodes and their centrality values. Obviously, if it wasn’t for the weird datastore thing I’d have done this recursively and made it return the values for the whole network rather than calling it for each node.

And it works. The first result was that one particular minister was slightly reducing the overall centralisation (and therefore fragility/instability) of the system as a whole. And he’s Ed Davey. As the point of having Lib Dems is meant to be reducing the centrality of Dave from PR and paddock-boy in the system, this suggests that we shouldn’t get rid of him yet.

Going round the country, stirring up apathy

So, that PCCSpoil blog. To begin with, it was a collection of spoiled ballots from the police commissioner elections, a large (>75%) proportion of which seemed to add the hashtags #PCCSpoil or #policespoilballot. I had the impression that this suggested a campaign of some sort. After all, why the hashtag if you weren’t planning to put it on the web?

Since then, the blog has vanished, briefly shown a Mike Giggleresque student politics video, and now points at a petition to explain one’s spoiled ballot to No.10 Downing Street. Someone on Twitter thought the slogan “Don’t politicise the police”, which many of the spoilers used, might be a Police Federation internal line. But it’s not.

There was a policeman who was supporting it, CynicalBobby on twitter. Also, a well-known libertarian. But these were late to the party. Much earlier (9th November) a facebook page had appeared. Following up people who liked it or contributed in any way, I found no cops, but a variety of people who were by turns Green, sceptics, atheists, pro-Palestinian, and from Yorkshire, Wales, or the Isle of Wight, in more than one case.

Spoiltpapers.org.uk was registered by someone in Wrexham on the 9th of November, the same day the facebook page appeared. On the way, Plaid Youth glommed on. But many of the people involved were in comments to this Guardian piece, on their Northerner blog, from the 5th of November.

That, in turn, was from this lady, a regular contributor from God’s and Jimmy’s own county, a green-minded pro-Palestinian ex-Lib Dem who even introduced the slogan, on the 3rd. We have a patient-zero. Magic darts!

A special note. Tumblr, like Facebook, doesn’t delete your photos if you kill your account or even delete stuff from it. They remain in whichever content-delivery network they used. I know this because, after the PCC blog vanished, I noticed I still had a copy open in a browser tab, and I was able to wget all the images and the HTML wrapper into an archive.

Update: One of the people in this post is now claiming to be me! As a note to the TV producers who are asking me for copies of the spoiled ballots, PCCSpoil is not my blog and has nothing to do with me. My bet is the Plaid guy.

The intersection of electronic warfare and mall management

Here’s something interesting. You may remember this story from back in November about the CIA spy network in Lebanon that met at a Pizza Hut they codenamed PIZZA, and which was rolled up by a joint Hezbollah-Lebanese military intelligence investigation. The key detail is as follows:

U.S. officials also denied the source’s allegation that the former CIA station chief dismissed an email warning that some of his Lebanese agents could be identified because they used cellphones to call only their CIA handlers and no one else.
…
Lebanon’s security service was able to isolate the CIA informants by analyzing cellphone company records that showed the numbers called, duration of each call and location of the phone at the time of the call, the source said.

Using billing and cell tower records for hundreds of thousands of phone numbers, software can isolate cellphones used near an embassy, or used only once, or only on quick calls. The process quickly narrows down a small group of phones that a security service can monitor.

If the top paragraph is true, it would have been catastrophically ill-advised. Even somebody special, like a CIA agent under diplomatic cover, has a relatively large number of weak ties to normal people. This is the reverse of the small-world principle, and is a consequence of the fact that the great majority of people are real human beings rather than important persons. As a result, things like STELLAR WIND, the illegal Bush-era effort to analyse the whole pile of call-detail records at AT&T and Verizon in the hope that this would find terrorists, face a sort of Bayesian doom. We’ve gone over this over and over again.

However, phone numbers that only talk to special people are obviously suspicious. Most numbers with a neighbourhood length of 1 will be things like machine-to-machine SIMs in vending machines and cash points, but once you’d filtered those out, the remaining pool of possibles would be quite small. It is intuitive to think of avoiding surveillance, or keeping a low profile, but what is required is actually camouflage rather than concealment.

There are more direct methods – which is where electronic warfare and shopping mall management intersect.

Path Intelligence, a Portsmouth-based startup, will install a network of IMSI-catchers, devices which act as a mobile base station in order to identify mobile phones nearby, in your shopping centre so as to collect really detailed footfall information.

Similarly, you could plant such a device near that Pizza Hut to capture which phones passed by and when, and which ones usually coincided. Alternatively, you could use it in a targeted mode to confirm the presence or absence of a known device. Which makes me wonder about the famous Hezbollah telecoms network, and whether it was intended at least in part to be an electronic-intelligence network – as after all, nothing would be a better cover for a huge network of fake mobile base stations than a network of real ones.

Meanwhile, this year’s CCC (like last year’s) was just stuffed with GSM exploits. It really is beginning to look a lot like “time we retired that network”.

Protection….

Update: I originally didn’t want to publish this because I didn’t think it was good enough, but I hit the wrong button. Anyway, Alistair Morgan read it and thinks one of the premises of the whole thing is wrong. Namely, the weapons were going in the same direction as the drugs, not the other way around. Well, at least the story moved on a bit, but this renders mostly useless a whole additional post I put together from reading a lot of crazy-but-interesting stuff out of the bottom of the Internet. Also, despite the Jessie J reference there’s better music at the bottom if you get that far.

So, Alistair Morgan’s twitter feed frequently hints at “cocaine, weapons, and Ireland” as well as police corruption as being factors involved in the case of his brother, Daniel Morgan, the private detective murdered in 1987, probably by people who were since employed by News International. It’s often been said that Morgan was on the point of publishing some sort of huge revelation when he was killed, but nobody knows what it was beyond his brother’s hints based on what the police told him at the time.

Since the eruption of the phone-hacking scandal, a number of sidelights have come up which linked the News of the World, its cadre of ex-police gumshoes, and its contacts inside the police force. Notably, it seems to have spied on the former Army intelligence agent-handler, Ian Hurst, on an NGO, British-Irish Rights Watch (because documents of theirs were on Hurst’s computer when they hacked it), and perhaps on the chief of police, Sir Philip Orde. It would have been hard for people working for the press not to have covered at least one Northern Irish story in the last 20-odd years simply because it was such a news staple, but it’s worth noting their interest.

The War Economy of Northern Ireland

So, what might link Morgan, cocaine, weapons, Ireland, and policemen? There are some fairly well-known stylised facts or stereotypes about the economy of the Troubles. The IRA mostly funded itself from money collected in the United States, from bank robberies, and from unofficial taxes it collected in the North. It also got contributions from friendly countries, specifically Libya. The Loyalists didn’t have a reliable source of their own money abroad like NorAid, and so specialised in protection and drugs. Both sides also got involved in smuggling across the border as a commercial exercise.

That’s a glib summary ‘graf; obviously, I collect a revolutionary tax for the struggle, you impose fines on drug dealers and dishonestly stick to some of the money, and they are merely thugs operating a protection racket. Traditionally, both Sinn Fein and the British tended to stereotype the Loyalists as basically criminal and the IRA as proper insurgents – there may be some truth in there, but the distinction is one of emphasis and degree and also of propaganda rather than of kind.

Having obtained money, they both needed to convert some of it into arms. The IRA got a famous delivery in the 80s from Libya in its role as Secret Santa, and also often bought guns in the US over the counter and smuggled them back. I don’t know how well characterised the sources of Loyalist arms are, which of course gives me license to speculate.

Permanently Operating Factors

Now for the cocaine, which has often been known to land in bulk quantities on the wilder, less populated bits of the Atlantic coast that also offer good harbours. This is a rare combination, as people live near ports. Two of the best bits on that score are northwest Spain and southwest Ireland. Having landed, you can move it on anywhere in the UK-Ireland common travel area without much more trouble. Since the creation of the Schengen area, Galicia is even better for this because there is such a choice of markets you can reach without a customs inspection. But in 1987 this was an un-fact, so you might as well go to Ireland.

This transit trade had important consequences – notably the rise of Martin “The General” Cahill, the assassination of Veronica Guerin, and probably a substantial chunk of the Irish property bubble via the laundering of profits and also by the boost to those ol’ animal spirits the drug provides.

Imagine, then, that an important criminal actor supplying the London market with cocaine also had access to a reliable surplus of weapons. There is the potential for trade here.

However, it’s not that simple – the famous Libyan shipment would have fit in a couple of shipping containers, and it kept the IRA going up until peace was signed, with a fair bit left over to be buried in concrete by the international commissioners on decommissioning. It is very unlikely that any plausible flow of arms to Northern Ireland would have paid for the flow of cocaine into the South-East.

We Don’t Need Your Money, Money, Money, We Just Wanna Make The World Dance…

There’s something else going on – Diego Gambetta would have already pointed out that you need to understand the trade in protection. To sell protection, you need weapons, which are the capital equipment of the business of private protection. In so far as the buyers in the UK were paying in guns as well as cash, they were arguably expressing a protector-protectee relationship. While on our territory, we protect you, and license you to provide protection. This was also reciprocated. In accepting them, were the sellers of the cocaine undertaking to protect it in transit on their own territory?

Another way of looking at this, which Gambetta would also approve of, would be in terms of costly signalling. Being both a supplier and a protector is a powerful position, but it might be worth letting the other side have it as a guarantee or hostage, to signal that you didn’t intend to break the agreement and deal with some other supplier. This makes even more sense given that you still have a regular supply of guns you could cut off or use against them, and therefore both parties have something to lose.

Now, Gambetta’s work mostly deals with Sicily, where a very important protection supplier has often been irrelevant. London is a very different society from this point of view. Whatever you think of the police, you can’t just ignore them as a factor. In some other societies, the police might be protection consumers, but here, police corruption usually takes the form of policemen selling protection. (In a sense, the more effective the police, the more tempting this will be. Nothing sells like the good stuff.)

So, gazing down on this complex, neo-medieval exchange of cash, credit, and protection, there is a sort of Sun King whose permission is required for any protection contract to be signed. It’s like a feudal society. My liege lord is only so, because he is the King’s subject, and the King at least theoretically owes duties to the Emperor, or later, directly to God. Our buyer is in a position to offer protection for his end of the business because he enjoys protection supplied by the police.

Who were the recipients, the sellers? They might have been drug dealers who needed to buy protection from one or other paramilitary group. They might have been drug dealers who wanted to build up enough arms that they could stop buying protection, or rather, change protector. Or they might have been paramilitaries who sold protection to the drugs trade. The distinction is surprisingly unimportant.

So, to put the pieces together, there was some group of South-East London villains importing cocaine from transit providers in Ireland, who were also exporting weapons in the opposite direction as part of an exchange of protection for their common business. This required buying protection from the police. Where did the weapons come from? And why is News International involved?

Protection….

Update: I originally didn’t want to publish this because I didn’t think it was good enough, but I hit the wrong button. Anyway, Alistair Morgan read it and thinks one of the premises of the whole thing is wrong. Namely, the weapons were going in the same direction as the drugs, not the other way around. Well, at least the story moved on a bit, but this renders mostly useless a whole additional post I put together from reading a lot of crazy-but-interesting stuff out of the bottom of the Internet. Also, despite the Jessie J reference there’s better music at the bottom if you get that far.

So, Alistair Morgan’s twitter feed frequently hints at “cocaine, weapons, and Ireland” as well as police corruption as being factors involved in the case of his brother, Daniel Morgan, the private detective murdered in 1987, probably by people who were since employed by News International. It’s often been said that Morgan was on the point of publishing some sort of huge revelation when he was killed, but nobody knows what it was beyond his brother’s hints based on what the police told him at the time.

Since the eruption of the phone-hacking scandal, a number of sidelights have come up which linked the News of the World, its cadre of ex-police gumshoes, and its contacts inside the police force. Notably, it seems to have spied on the former Army intelligence agent-handler, Ian Hurst, on an NGO, British-Irish Rights Watch (because documents of theirs were on Hurst’s computer when they hacked it), and perhaps on the chief of police, Sir Philip Orde. It would have been hard for people working for the press not to have covered at least one Northern Irish story in the last 20-odd years simply because it was such a news staple, but it’s worth noting their interest.

The War Economy of Northern Ireland

So, what might link Morgan, cocaine, weapons, Ireland, and policemen? There are some fairly well-known stylised facts or stereotypes about the economy of the Troubles. The IRA mostly funded itself from money collected in the United States, from bank robberies, and from unofficial taxes it collected in the North. It also got contributions from friendly countries, specifically Libya. The Loyalists didn’t have a reliable source of their own money abroad like NorAid, and so specialised in protection and drugs. Both sides also got involved in smuggling across the border as a commercial exercise.

That’s a glib summary ‘graf; obviously, I collect a revolutionary tax for the struggle, you impose fines on drug dealers and dishonestly stick to some of the money, and they are merely thugs operating a protection racket. Traditionally, both Sinn Fein and the British tended to stereotype the Loyalists as basically criminal and the IRA as proper insurgents – there may be some truth in there, but the distinction is one of emphasis and degree and also of propaganda rather than of kind.

Having obtained money, they both needed to convert some of it into arms. The IRA got a famous delivery in the 80s from Libya in its role as Secret Santa, and also often bought guns in the US over the counter and smuggled them back. I don’t know how well characterised the sources of Loyalist arms are, which of course gives me license to speculate.

Permanently Operating Factors

Now for the cocaine, which has often been known to land in bulk quantities on the wilder, less populated bits of the Atlantic coast that also offer good harbours. This is a rare combination, as people live near ports. Two of the best bits on that score are northwest Spain and southwest Ireland. Having landed, you can move it on anywhere in the UK-Ireland common travel area without much more trouble. Since the creation of the Schengen area, Galicia is even better for this because there is such a choice of markets you can reach without a customs inspection. But in 1987 this was an un-fact, so you might as well go to Ireland.

This transit trade had important consequences – notably the rise of Martin “The General” Cahill, the assassination of Veronica Guerin, and probably a substantial chunk of the Irish property bubble via the laundering of profits and also by the boost to those ol’ animal spirits the drug provides.

Imagine, then, that an important criminal actor supplying the London market with cocaine also had access to a reliable surplus of weapons. There is the potential for trade here.

However, it’s not that simple – the famous Libyan shipment would have fit in a couple of shipping containers, and it kept the IRA going up until peace was signed, with a fair bit left over to be buried in concrete by the international commissioners on decommissioning. It is very unlikely that any plausible flow of arms to Northern Ireland would have paid for the flow of cocaine into the South-East.

We Don’t Need Your Money, Money, Money, We Just Wanna Make The World Dance…

There’s something else going on – Diego Gambetta would have already pointed out that you need to understand the trade in protection. To sell protection, you need weapons, which are the capital equipment of the business of private protection. In so far as the buyers in the UK were paying in guns as well as cash, they were arguably expressing a protector-protectee relationship. While on our territory, we protect you, and license you to provide protection. This was also reciprocated. In accepting them, were the sellers of the cocaine undertaking to protect it in transit on their own territory?

Another way of looking at this, which Gambetta would also approve of, would be in terms of costly signalling. Being both a supplier and a protector is a powerful position, but it might be worth letting the other side have it as a guarantee or hostage, to signal that you didn’t intend to break the agreement and deal with some other supplier. This makes even more sense given that you still have a regular supply of guns you could cut off or use against them, and therefore both parties have something to lose.

Now, Gambetta’s work mostly deals with Sicily, where a very important protection supplier has often been irrelevant. London is a very different society from this point of view. Whatever you think of the police, you can’t just ignore them as a factor. In some other societies, the police might be protection consumers, but here, police corruption usually takes the form of policemen selling protection. (In a sense, the more effective the police, the more tempting this will be. Nothing sells like the good stuff.)

So, gazing down on this complex, neo-medieval exchange of cash, credit, and protection, there is a sort of Sun King whose permission is required for any protection contract to be signed. It’s like a feudal society. My liege lord is only so, because he is the King’s subject, and the King at least theoretically owes duties to the Emperor, or later, directly to God. Our buyer is in a position to offer protection for his end of the business because he enjoys protection supplied by the police.

Who were the recipients, the sellers? They might have been drug dealers who needed to buy protection from one or other paramilitary group. They might have been drug dealers who wanted to build up enough arms that they could stop buying protection, or rather, change protector. Or they might have been paramilitaries who sold protection to the drugs trade. The distinction is surprisingly unimportant.

So, to put the pieces together, there was some group of South-East London villains importing cocaine from transit providers in Ireland, who were also exporting weapons in the opposite direction as part of an exchange of protection for their common business. This required buying protection from the police. Where did the weapons come from? And why is News International involved?

it flies! well, that’s what it was bloody well designed to do

The question isn’t so much “did Eric Pickles eat all the pies?”, it’s “who paid for the pies, and how many did he declare in the register of members’ interests?”. TBIJ is on an absolute tear on Tory lobbying stories at the moment, and the combination of photo and caption for the Eric Pickles one is masterly.

But this story reveals more than it says. So, four cabinet ministers accepted donations to their private offices since May, 2010. Those would be William Hague, George Osborne, Liam Fox, and Michael Gove, or to put it another way, most of Atlantic Bridge and the core of the neo-conservative group within the Conservative Party. I do not think this is a coincidence.

Curiously, it seems that if you get donations to your private office you don’t also get them to your constituency party branch and vice versa, with the exceptions of George Osborne and Michael Gove, who would have more jam on it, wouldn’t they?

Pickles, for his part, received zero, which makes perfect sense. You can’t eat money, and as for spending it on unofficial advisers, that only makes sense if you ever take advice from other people and the Bradford food-mountain has always known he’s right.

Meanwhile, Lord Astor of Hever turns up as a trustee of the Bridge and an pal of the Werritty-funding SAS walt, Iraq contract hunter, and intimate of mercenaries Tim Spicer and Anthony Buckingham.

I think I’ve said before that Astor of Hever came out of the Lobster Project proof of concept script as being a surprisingly important gatekeeper – although in himself, he isn’t a major node, people who meet him also tend to get one-to-one meetings with the most important ministers. His weighted network degree, a measurement of how many links in the lobbying network involve him adjusted for how many people took part in the meetings, is 0.125, pretty low (78th in the league), but his gatekeepership metric is 2.533, the third highest overall and the very highest score for a minister with UK-wide responsibility. (I discount the gatekeepership numbers for Scottish and Welsh ministers, as their role is partly to represent Scottish and Welsh interests and they are structurally heavily lobbied.)

The gatekeepership metric in Lobster is the ratio of the average weighted network degree of those who lobbied a given minister to the average of all lobbies, to the ratio of that minister’s network degree to that of an average minister, thus capturing the degree to which meeting that minister was associated with meeting more or less important ones while taking into account the fact that some ministerial jobs are more important than others. If it is greater than 1, you’re likely to get a boost, if less, you’re being heard out.

A limitation is that obviously, the Prime Minister can’t help you meet a more important minister, so it doesn’t yet deal with the situation where you meet the PM to get your word across and are then referred to a junior minister for action. I accept that this is a problem, although you would expect that it is easier to lobby the small fry, so the metric is nevertheless useful. However, at a network degree of 0.125, Lord Astor is not affected by this phenomenon.

OK, so we have a prediction – other ministers involved with the Werritty/Fox/Atlantic Bridge case will demonstrate unusually high gatekeepership. Step forward Gerald Howarth MP, Minister for International Security Strategy, who achieves a gatekeepership of 2.36, the fourth highest overall and the second highest UK-wide, on a network degree of 1.2. That’s some pull, when you note that he’s a significant node in terms of quantity.

Lobster detected a sinister network of influence! How awesome is that?

Liam Fox: Not Fit For Purpose

OK, so “Not All That” Foxy Liam Fox is in trouble.

“He is an odd bloke,” said one fellow minister. “He has fingers in so many pies that you kind of think one of them will land him in trouble somewhere along the line.”

Another Tory MP said Fox’s tendency to name-drop and brag about his close friendships with Republicans in the US, media magnates such as David and Frederick Barclay (owners of the Daily Telegraph), and his endless globe-trotting, even before he entered the cabinet, has made many bristle and help explain why he has plenty of enemies in the Tory party and in Whitehall. “I think you either roll with the bluster or find it repellent,” said a Tory MP.

Ah, one of them. Anyway. Part of the problem is this famous meeting where his bestie Adam Werritty just happened to turn up. What was on offer? Well, a product called Cellcrypt, whose makers were trying to sell it to the MoD to stop evilly-disposed persons from eavesdropping on British soldiers’ phone calls back to the UK. (Note: this is going to be long. Technical summary: voice encryption apps for GSM-style mobile networks can guarantee that your call will not be overheard, but not that your presence cannot be monitored, and not necessarily that the parties to your calls cannot be identified.)

Back in the early days of Iraq, the CPA permitted one mobile phone operator in each of its three zones to set up. The British zone, CPA-South/Multinational Division South-East, let the Kuwaiti national telco, MTC (now Zain and busy running Mo Ibrahim’s old Celtel business into the ground) set up there with a partner some of us may have heard of. It’s from Newbury and it’s not a pub or an estate agency and its logo is a big red comma…funny how Vodafone never talked that particular investment up, innit? Anyway. Later the Iraqi government did a major tender for permanent licences and Orascom got most of it, but that’s another story.

One thing that did happen was that soldiers took their mobiles with them to Iraq, and some of them pretty soon realised that buying a local SIM card in the bazaar was much cheaper than making roaming calls back to the UK. Either way, lots of +44 numbers started showing up in their VLR, the big database that keeps track of where phones are in a GSM network so it can route incoming calls.

Pretty soon someone who – presumably – worked for the MTC-Voda affiliate and whose purposes were not entirely aligned with Iraq The Model realised that you could use the VLR to follow the Brits (and the Yanks and the Danes and the Dutchmen and Kiwis and all sorts of contractors) around. Not only that, you could ring up their families in the UK and make threats with the benefit of apparently supernatural knowledge.

This obviously wasn’t ideal. Efforts were made to mitigate the problem; soldiers were discouraged from using local GSM networks, more computers and public phones were made available. The eventual solution, though, was to get some nice new ruggedised small-cell systems from companies like Private Mobile Networks Ltd., which basically pack a small base station and a base station controller and a satellite backhaul terminal into a tough plastic box of a suitably military colour. You open it up, unfold the antenna, turn on the power, and complete some configuration options. It logs into the mobile operator who’s providing service to you via the satellite link.

Now, because radio signals like all radiation lose intensity with the inverse square of the distance, you’ll be vastly louder than everyone else. So any mobile phone nearby will roam onto your private mobile network and will be in the UK for mobile phone purposes, a bit like the shipping container that’s technically in Egypt at the end of Four Lions. And none of this will touch any other mobile network that might be operating in your area. Obviously you can also use these powers for evil, by snarfing up everyone else’s traffic, and don’t for a moment think this isn’t also done by so-called IMSI catchers.

You’re not meant to do this, normally, because you probably don’t have a licence to use the GSM, GSM/PCS, or UMTS frequencies. But, as the founder of PMN Ltd. told a colleague of mine, the answer to that is “we’ve got bigger tanks”.

So, where were we? Well, the problem with trying to do…something…with Cellcrypt is that it doesn’t actually solve this problem, because the problem wasn’t originally that the other side could listen to the content of voice calls. Like all telecoms interception stories, it was about the traffic analysis, not the content. Actually, they probably could listen in as well because some of the Iraqi and Afghan operators may not have been using up-to-date or even *any* air interface encryption.

But if you’re going to fix this with an encryption app like Cellcrypt, you’ve got to make sure that every soldier (and sailor and diplomat and journo and MoD civilian) installs it, it works on all the phones, and you absolutely can’t make calls without it. Also, you’ve got to make sure all the people they talk to install it.

And the enemy can still follow you because the phones are still registering in the VLRs!

So, there’s not much point relying on OTA voice encryption to solve a problem that’s got nothing to do with the voice bearer channel. However, bringing your own small cell network certainly does solve the problem, elegantly, and without needing to worry about what kind of phones people bring along or buy locally.

And the military surely understand this, as by the time of the famous meeting, they’d already started deploying them. Also, back when this was a big problem, 19 year-old riflemen usually didn’t have the sort of phones that would run a big hefty application like Cellcrypt, which also uses the mobile data link and therefore would give them four figure phone bills.

To sum up, Werritty was helping someone market gear that the MoD didn’t need, that was hopelessly unfit for purpose, wouldn’t actually do what the MoD wanted, and would cost individual soldiers a fortune, by providing privileged access to the Secretary of State for Defence.

discovering the axis of barking

The Grauniad Dabatlog has produced a rather fancy network visualisation of the sources cited in Anders Behring Breivik’s personal manifesto/horse-shit compendium. This is great as I now don’t need to worry that I perhaps should have made one. It’s very pretty and you can click on stuff, and see that some of the sources are thinktanks and some of them are newspapers, and well, it’s very pretty and you can click on stuff. It also comes with a piece by Andrew Brown reprising his “Don’t be beastly to the creationists!” shtick but with Melanie Phillips, for some reason.

Unfortunately it’s almost completely intransparent, and gives little indication of what data is being visualised or on what basis, and there is really no obvious conclusion to draw from it. But did I mention pretty and click? If forced to take a view, I would reckon that the underlying data is probably a matrix of which sources appear together with others and the layout algo is a force-directed graph (aka the default in pretty much any visualisation toolkit), probably weighted by appearance count. There’s some sort of proprietary metric called “linkfluence” which appears to be given by(indegree/outdegree)*len(neighbourhood) or words to that effect.

As a result, the only information I got from it was that he linked to Wikipedia, the BBC, and big news sites a lot. Well yes; Wikipedia, bbc.co.uk, etc, generate a hell of a lot of web pages and people read them a lot. Obviously, to say the least, you need to normalise the data with regard to sheer bulk, or you’d end up concluding that Google (or Bing or Yahoo) was his inspiration because he did a lot of web searches, or that he was a normal man twisted by SMTP because he used e-mail.

In fact, I thought they actually did that until I realised that RSS.org is about the other RSS, the Indian extreme-right movement, not the popular Internet syndication standard. Harrowell fail. Anyway, it does show up rather nicely that the groups “European nationalists”, “Counter-Jihad”, and “American Right-Wing” overlap. However, I feel there’s something missing in the characterisation of MEMRI and various other sites as just “Think Tanks” as if they were just like, say, IPPR.

Also, an emergent property of the data is that there is an Axis of Barking running vertically through it: the nearer you are to the top of the diagram, the more extreme and crazy. MEMRI, FrontPage, Gates of Vienna, Melanie Phillips are near the top; the Wikipedia article on the Russo-Turkish War of 1878 is at the bottom. And the MSM is somewhere in the middle. (Although I do wonder if they allocated the sources to groups before or after running the force-directed graph.)

It seems to be one of those command the exciting world of social media with just one click! things.

Anyway, upshot. I want to avoid Project Lobster producing a diagram like this one. It’s too impressionistic and fluffy and reliant on basically aesthetic reasoning. (I think we’ve had this point before.) Of course, that’s partly the difference between the underlying data sets; it was at least thinkable if unlikely that there would be no grouping in Breivik’s sources, while presumably political lobbying is nonrandom and subject to intelligent design.

Elsewhere, a reader passed this along which I need to actually watch (isn’t video time consuming?). There’s a shindig in Warsaw in late October. And I want this on a T-shirt.

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The Obscurer has possibly the first intelligent article on the whole “turn off their Facebook! that’ll learn em!” furore. Notably, they interviewed one-man UK mobile industry institution Mike Short. Go, read, and up your clue. I especially liked that the piece provided some facts about the 7th July 2005 terrorist incident and the mobile networks.

There is only one reported case of a UK network being closed by police. During the 7/7 London suicide bombings, O2 phone masts in a 1km square area around Aldgate tube station were disconnected for a number of hours.

Police have an emergency power to order masts to be put out of action known as MTPAS – Mobile Telecommunication Privileged Access Scheme. The move has to be approved by Gold Command, by the officers in highest authority during a major incident, and is designed to restrict all but emergency service phones with registered sim cards from making calls. But a shutdown can have dangerous knock-on effects. Short says that phones within the Aldgate zone automatically sought a signal from live masts outside it, overloading them and causing a network failure that rippled out “like a whirlpool”.

On the day, other networks were simply overloaded as Londoners sought reassurance and information. Vodafone alone experienced a 250% increase in call volumes

MTPAS is the GSM-land equivalent of the old fixed phone Telephone Preference Scheme (not to be confused with the new one that blocks cold-callers), which permitted The Authorities to turn off between 1% and 90% of phone lines in order to let official traffic through. As far as I know, the Met never asked for it and it was City of London Police who initiated it without asking the Met or anyone else, and in fact O2 UK’s network had been keeping up with demand up to that point, before the closure caused the cascade failure Short describes.

The significance of O2 is that it used to be “Surf the Net, Surf the BT Cellnet” and some residual gaullist/spook reflex in the government tried to keep official phones on what was then one of two British-owned networks.

Anyway, this weekend seems to have the theme “The Intersection of Charlie Stross and the August 2011 Riots”. Charlie’s talk at USENIX is sensibly sceptical about some tech dreams as they apply to networking.

This leaves aside a third model, that of peer to peer mesh networks with no actual cellcos as such – just lots of folks with cheap routers. I’m going to provisionally assume that this one is hopelessly utopian, a GNU vision of telecommunications that can’t actually work on a large scale because the routing topology of such a network is going to be nightmarish unless there are some fat fibre optic cables somewhere in the picture. It’s kind of a shame – I’d love to see a future where no corporate behemoths have a choke hold on the internet – but humans aren’t evenly distributed geographically.

Especially as the theoretical maximum bandwidth of one fibre is about the same as the entire radio spectrum. And the point about routing table size and complexity is a very good one, especially as it’s assumed that the routers aren’t CRS-1s but rather Linksys fifty quidders or mobile phones.

However, one thing the liberation technologists should take away from the riots is that you shouldn’t get hung up on bandwidth. It’s great to be able to post the photos on Flickr, but it’s more useful to have your own secure voice and messaging. When the Egyptian government relented on its GSM cut-off, the Egyptian Twitter feeds lit up with calls for more people to this or that exit of Tahrir Square or medical supplies to the clinic or (and I remember this) that a lost child was waiting at the press tent.

It was what NANOG users would call operational content. There was of course no need whatsoever for it to go via a Bay Area website – all Twitter provided was the one-to-many element, very important, and the publicity on the Web. The latter is a nice-to-have feature, the former, critical. Text, or even voice, is not a high bandwidth application and doesn’t necessarily need access to the global Internet.

So yes – perhaps there is in fact quite a bit of angular momentum to be had in a mobile mesh-WLAN client as an instrument of democracy, as long as you’re willing to accept that it’s not the sort of thing that can be exclusive to people who agree with you. But then, that’s the test of whether or not you actually believe in democracy.

Something else, between Charlie’s USENIX talk and the riots. Isn’t one of the biggest disappointments, from a police point of view, the performance of CCTV? No doubt it will help put some of the rioters in jail. But it didn’t prevent the riots and neither did it seem to help quell them much. It’s possible that the whole idea that potential surveillance (like the original panopticon) is a policing influence isn’t as strong as it’s made out to be.

Another point; not all crimes are punished or even taken notice of. This is obvious. Less obvious is that the degree to which the police ignore crime is an important political fact. Is it possible that CCTV, by forcing them to make at least a token response to everything that passes in camera range, actually contributed to using up the police strength? In a riot, the police aim is to demonstrate public, mass control. They are usually willing to ignore quite a lot of individual criminality in the process. It’s possible that surveillance culture and technology are opposed to strategy.