Back to the no fly list rant. Turns out all you have to do is buy an online ticket under a false name, save as a PDF, Print it once with the false name. Then change the name with Adobe to your real name and print that one too. Show the one where they check ID to the security guard and give the fake name one to flight attendant.
This also would work to get several people pass the guard to see you off.
see this link:
http://www.schneier.com/blog/archiv...e_your_own.html
for details.
According to him, the id check was to prevent people from giving non-transferable tickets to friends.