If you make it to the gate without being SSSS screened, they should just give up. Telling you to go back to the checkpoint to be screened? That's the most pathetic "security" policy I've heard in a while. As if a terrorist isn't going to be smart enough to drop off his bomb in the bathroom or something before making nice with the TSA?

This reminds me of a similarly stupid Greyhound "security" scheme that I posted about in this forum last year. I'm too lazy to search for the link at the moment.