Guess what happens when al-Qaeda figures out which particular demographic the TSA believes poses no threat? They find people to fit the description and do their thing.
Searches have got to remain random, but at the same time focussed on the demographics we know pose the greatest threat. The degree of randomness should be high enough, however, to dissuade AQ from seeking out 60-yr old lonely white women who convert to Islam and using them.
JMHO.
Thanks for that bit of wisdom injected into the hysteria about the so-called horror of a TSA checkpoint! LOL!
I swear some folks are so paranoid they should never leave their house, much less fly on an jet, post 9-11!