Most of the anti spyware software out there is put out by a consortium which has Comet Systems as a member the consortium is breaking up due to ethical diagreements between members. I have microsofts beta the thing it won't get rid of completely is a Comet System addware that tries to install on startup. Yes it's the same ANTI-spyware people Comet System.
The object of the security setup is to ease the travelers mind. You can still take a myriad of deadly objects on a flight (Bottle of wine). There is no such thing as dangerous weapons only dangerous people. A seal team member naked is 1000 times more deadly than this lady and her knife. The victories concerning anti terrorism take place in shadows and you will never hear about them. Still the antics of the window dressing (screeners) are amusing and they may catch the mentally challenged terrorist.