Seems Jeff Dunham had a run in with TSA. Very short on details and I have little doubt the source doesn't help. If anyone finds any other info please help fill out this story. Peanut did it! http://www.tmz.com/2012/05/09/jeff-dunham-puppet-airport-video-tmz-on-tv/
If TSA wasn't involved I would tend to agree. Only TSA could find an issue with the butt of a puppet. Would that make TSA the butt for all jokes?
If I am not mistaken, this has been a part of his act for ages, that and Achmed sitting up and saying "I am Lindsay Loooooooohaaaaaaaan".
More noise, but shows a deepening contempt for TSA behavior as well. The TSA's fingers cannot plug all the holes that are opening up in this dike. They're too busy plugging our holes.
He has had a bit about airport security in some of his acts for years. It makes fun of his times talking to security and bringing the characters through in their boxes. He also talks about how the ETD alarmed on Peanuts nether regions. Here is a clip about the same thing he was talking to TMZ about, from 2008ish: http://www.youtube.com/watch?v=Ix9en-A3tXU