Originally Posted by
Felixishim
well it happens, and i think this has been discussed before,
bring your global entry card if you need to, they may just let you go thru pre-check still since a global entry approved person is Always pre check eligible
From what I've seen at PreCheck lines, the TSA will reject passengers who present a Global Entry card if they weren't selected for PreCheck on the boarding pass. Since PreCheck is "randomly" unselected for trusted travelers, presenting a Global Entry card might not help.
Since it's the TSA, I'm sure their "policy" varies agent to agent.
One time my sister couldn't get through TSA with her Homeland Security ID. The TSO said only driver licenses and passports are valid ID... She just laughed it off and took a few minutes to pull out her wallet from her purse.