Was over at the Kennedy Space Center for a shuttle launch a few months ago. Was warned that the visitors center had TSA style security so i had removed all of the stuff from my pockets that i normally tote. But i had my camera and camera bag with me, put the bag in the bin and walked through the metal detector. No beeps, grabbed my camera bag and went to the security check point person who proceeded to undo every zipper on the camera bag. Didn't look at anything, just undid all of the zippers. Then she says that i don't have to take the camera out of the bag, just turn it on which i did. She did look at the display but that was the extent of the security check. Should mention that i don't have a little shirt pocket size camera, i have a full size DSLR with a telephoto lens attached. Here is a picture,

http://ericalyn.smugmug.com/gallery/7337293_7g6yq/1/459402560_J5cJa

No i don't know her, it is just a picture of someone pretty with a really nice piece of glass. But that is the size of my camera. Was there with my little brother and he said the same thing, his security person said turn it on but you don't need to take the camera out of the bag. So i would say that security was slack.