The other day I discovered my drivers license missing just as I reached the front of the security line! PANIC! Fortunately, I found it on the floor after a short frantic search. But it got me to thinking.....what happens if you can't produce "picture ID"? If I'm away from home and trying to fly home, I don't think I could provide anything under those circumstances. What recourse do you have? Is it up to TSA? Your airline? Thanks.