TSA says on its blog: "If you are taking pictures at or near the checkpoint, don't be surprised if someone (TSA, airport police, or a curious passenger) asks you what you're up to. We don't prohibit public, passengers or press from photographing, videotaping, or filming at screening locations. You can take pictures at our checkpoints as long as you're not interfering with the screening process or slowing things down.
http://articles.cnn.com/2010-11-25/tech/shooting.video.tsa_1_tsa-s-office-tsa-checkpoints-shooting-video?_s=PM:TECHWant To Photograph Your TSA Ordeal? Not So Fast
Nov. 24 2010 - 12:11 pm
By ANDY GREENBERG
My wife and I arrived at the airport for our annual Thanksgiving pilgrimage Tuesday evening, and like millions of others, came face-to-face with the TSA’s upgraded security measures. I breezed through; My wife, who apparently looks far more dangerous than I do, was pulled aside for a pat-down.
Her frisker was very polite and the procedure was barely invasive, if a bit more aggressive than in the past. But while she was being systematically searched from head to toe, I pulled out my BlackBerry to take some pictures and record a souvenir of the Great Gropefest of 2010. Within seconds I was being shouted at sternly by another TSA agent, who told me that “either you stop taking pictures, or I take your camera.” When I asked him why I couldn’t take photos of my wife in a public place, he said that it was “against the rules.”
http://blogs.forbes.com/andygreenberg/2010/11/24/want-to-photograph-your-tsa-ordeal-not-so-fast/?boxes=techchanneltopstories