more on NYC to search transit riders' bags -- but ...

[David Farber <dave () farber net>]

Begin forwarded message:

From: Sam Weiler <weiler () watson org>
Date: July 25, 2005 7:39:17 PM EDT
To: David Farber <dave () farber net>
Cc: Ip ip <ip () v2 listbox com>
Subject: Re: [IP] more on NYC to search transit riders' bags -- but ...


> Would the rules of mathematical probability change if authorities  
> were to remove an unlikely group from the screening pool?

As Brad Templeton tried to explain, any profiling, or differentiating  
between "likely" and "unlikely" groups, gives the attacker an advantage.

Here's an MIT student paper that analyzes the attack strategy:
http://www.swiss.ai.mit.edu/6805/student-papers/spring02-papers/caps.htm

And a layman's summary from Gilmore's website on his lawsuit about  
requiring ID from airline passengers:
http://papersplease.org/gilmore/carnival.html

-- Sam


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