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Tito
Joined: 30 Mar 2004
Posts: 1203
Location: is everything |
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Is that a bomb in your pants or are you just happy to . . .
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Come on! What's happened to you people! One of the most glaring security breeches since 911 and you have nothing to say about it? Say what you want about Bush (and, oh yes, you did) but at least politics was interesting when he was prez. Don't give the current administration a pass just because, well, who knows why.
Ok. I'll go first. To paraphrase Jon Stewart, if he had succeeded, there would have been 72 very disappointed virgins in paradise. One way ticket paid with cash, no luggage, going to Detroit in winter with no warm clothes, and his own father turned him in previously. Sorry. Someone needs to own this one.
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Wed Jan 06, 2010 7:06 am |
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sgt_steve

Joined: 18 Jan 2005
Posts: 5193
Location: Michissippi |
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I did some digging, and think I found the article or a near-target here.
The relevant statement: "Even this unrealistically accurate system will generate 10 million false alarms for every real terrorist plot it uncovers. Every day of every year, the police will have to investigate 270,000 potential plots in order to find the one real terrorist plot per month." To restate his number a bit by actually factoring in the 30 days, that's 8,100,000 checks per month to generate 1 actual terrorist, or a false positive rate of 99.99875%. Mind you, this is based on the assumptions Schneier has set up in his article, which does make one take the number with a grain of salt. On the other hand, this is his field. The man knows whereof he speaks.
I've known Schneier casually for a number of years now, and while I don't much agree with his politics, his knowledge of the field is second to none. For many years he worked for an agency whose name I don't know and have not attempted to learn. In that service he travelled to many places where he got to eat interesting ethnic food - and that's the only thing he's ever said about it.
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Thu Jan 07, 2010 9:36 am |
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sgt_steve

Joined: 18 Jan 2005
Posts: 5193
Location: Michissippi |
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Re: Is that a bomb in your pants or are you just happy to .
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| Tito wrote: |
| . . . One way ticket paid with cash, no luggage, going to Detroit in winter with no warm clothes, and his own father turned him in previously. Sorry. Someone needs to own this one. |
| mllefifi wrote: |
| I think I heard some expert on the radio yesterday pointing out that to purchase a one-way ticket (even with cash) and to have no luggage are no longer considered red flags. |
To address these points in a bit more detail (oh noes, not facts!):
"No luggage" is pretty common and pretty misleading. I used to travel a lot of business, and about half the time made do with only carry-on. As such, I'd show up as "no luggage." How do you tell the difference between "no luggage" and "only has carry-on"? You don't, especially with a multi-leg flight that starts overseas. Plus as airlines have started charging more and more for every checked bag, more and more passengers travel light enough for carry-on to be all they have.
Paid with cash? Pretty much undetectable when the ticket is purchased overseas, especially in non-European areas.
Going to Detroit with no warm clothes? Again, how would one check for that? Go through everyone's luggage and make value judgments about the appropriateness of their clothes? Hell, somebody coming from a tropical area may not even own a coat. Instead, their brother-in-law is bringing one to the airport for them.
Father turned him in? Yeah, that was a good one. Then again, one of the problems that came up with "report anyone suspicious" was that people were reporting anyone who met their personal criteria for odd. That's soooo effective. I know a number of fathers whose opinions I wouldn't trust.
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Thu Jan 07, 2010 10:00 am |
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Tito
Joined: 30 Mar 2004
Posts: 1203
Location: is everything |
| sgt_steve wrote: |
I did some digging, and think I found the article or a near-target here.
Mind you, this is based on the assumptions Schneier has set up in his article, which does make one take the number with a grain of salt. |
A couple of grains. It seems that he set the parameters up to achieve the results he wanted - in particular the 1,000,000,000 possible terrorist plots to find 1 actual plot per year. And the assumption that all identified possibilities would have to be investigated. There is certainly triage going on in the law enforcement and intelligence communities. And, as far as profiling goes, the main relevant choke point - airports - futher reduces the need for both the number and duration of "investigations".
A combination of data mining, profiling, traditional investigation, and random screening work best in my opinion. Eliminating any or trusting solely in one would be a mistake. The argument should focus on what is the proper combination.
Last edited by Tito on Fri Jan 08, 2010 7:44 am; edited 2 times in total
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Thu Jan 07, 2010 10:17 am |
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Tito
Joined: 30 Mar 2004
Posts: 1203
Location: is everything |
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Re: Is that a bomb in your pants or are you just happy to .
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| sgt_steve wrote: |
| Tito wrote: |
| . . . One way ticket paid with cash, no luggage, going to Detroit in winter with no warm clothes, and his own father turned him in previously. Sorry. Someone needs to own this one. |
| mllefifi wrote: |
| I think I heard some expert on the radio yesterday pointing out that to purchase a one-way ticket (even with cash) and to have no luggage are no longer considered red flags. |
To address these points in a bit more detail (oh noes, not facts!):
"No luggage" is pretty common and pretty misleading. I used to travel a lot of business, and about half the time made do with only carry-on. As such, I'd show up as "no luggage." How do you tell the difference between "no luggage" and "only has carry-on"? You don't, especially with a multi-leg flight that starts overseas. Plus as airlines have started charging more and more for every checked bag, more and more passengers travel light enough for carry-on to be all they have.
Paid with cash? Pretty much undetectable when the ticket is purchased overseas, especially in non-European areas.
Going to Detroit with no warm clothes? Again, how would one check for that? Go through everyone's luggage and make value judgments about the appropriateness of their clothes? Hell, somebody coming from a tropical area may not even own a coat. Instead, their brother-in-law is bringing one to the airport for them.
Father turned him in? Yeah, that was a good one. Then again, one of the problems that came up with "report anyone suspicious" was that people were reporting anyone who met their personal criteria for odd. That's soooo effective. I know a number of fathers whose opinions I wouldn't trust. |
The thing about a legitimate profile is that it takes into account a number of characteristics, any one of which could be innocent but the combination of which enters into suspicious territory. If I went into a post office and mailed a box with a fictitious return address, way too much postage, and an oily stain or two to a public figure, you can bet that package would be profiled as a possible bomb. Any one of those characteristics by itself has an innocent explanation and would not raise much if any suspicion. But, if I did all that, and my dad called and said he was afraid I was a bomber, well . . .
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Thu Jan 07, 2010 10:26 am |
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