It's a meme now: TSA is crazy. May or not be true, but the meme is fully viral.
Like this... Nail clippers? One guy with nail clippers is going to take over a plane also occupied by 200 veteran infantry troops? An M-16, even without bullets, is plenty of club to face down a vicious nail clipper wielder.
(nod to the Blonde, who said she laughed so hard she snorted)