Originally Posted by gozetta

Definitely random. I was good for 10+ times at DFW, las, lax, and then last week at DFW got "CHK" on my DFW to Tulsa route. I found that quite amusing. Scanned the phone then had him scan the printed pass--no LLL. Quite wasteful too since there was a whole staffed and dedicated line and I waited about 20 minutes and never saw anybody go through it.