Originally Posted by
AngryMiller
Okay, that's the reason for the boarding pass check. So what is the reason for showing your ID again since you already showed it to the ticket agent?
Wild, unsubstantiated speculation follows.
1) The "pre-security security checker" might not be affiliated in any way with TSA. If, as suggested above, they're just trying to divert people who don't have boarding passes and IDs aside until they get those documents, in order to improve the overall throughput of the line, then showing them your ID doesn't actually satisfy the TSA's desire to verify your identity.
2) The checker might be an airline employee attempting to direct elite and non-elite passengers into different lines approaching the checkpoint, as they seem to have the right (and the desire) to do.