what a total waste of time and (my taxpaying) money . it's a cya for the tsa to catch what they missed at the checkpoints the first time around and nothing else.

and remember kids:
do not talk to strangers
know how to pronounce "i need an adult" clear and loud
ask which one of the the 3 screeners haraSSSSing you is moe, larry and curly
ask the person(s) in the tsa uniform to see their i/d and record it-if they refuse, ask for a leo. if questioned as to why you are asking, simply remind them that a uniform does not mean you are who you say you are as anyone can buy a uniform and you are completely within your rights to ask someone purporting to be from the tsa to prove who they are.