I am no fan of the TSA searches. But this post is virtually irrelevant. The fact remains that there was a 95% (probably 99.9% chance) that they *would* find the knife. No terrorist will plan something where there is a 99.9% chance of failure. The fact that a random knife or gun gets into the "sterile" area has no impact on the theory of security being used by TSA and its superiors.