Ann Althouse has a hilarious post about the possibility that terrorists will have bombs implanted inside their bodies, males in their buttocks or females in their breasts, since we are scanning every passenger and in effect seeing everybody naked. She adds:

So all we passengers need to do is keep an eye out for other passengers aiming hypodermic needles at their big breasts (or asses), and everything will be just fine. Unless you care that the authorities saw you naked. Better get used to it! This is war.

See this about breast implant bombers.