This was a great thread to read.
Genome4, was there ever any follow up to avoiding using your ID? I thank you for fighting for our rights. I had no idea I didn't need to show my ID. If we all refused to show our ID, as real patriots protesting unreasonable searches (they would be reasonable if they actually made things safer, right?), we might change this 'theatre security' we're subjected to.
In light of the "Body Scan," I've been getting the full pat-down. It's almost like getting a free massage (ok, not really).