TSA bars security guru from perv scanner testimony

Security expert Bruce Schneier was been banned at the last minute from testifying in front of congress on the efficacy – or otherwise – of the US Transportation Security Administration's (TSA) much-maligned perv scanners.

Schneier, who is currently involved in an Economist debate on just this issue, has criticized the TSA's procedures as "security theater", designed to give the appearance of security without actually being effective. He has pointed out that the scanners are easily defeated, and that since people who do have items are merely forced to give them up and sent on their way, terrorists simply need to send enough people through the systems until one of them succeeds.