And that may not be all that's needed. I recently went through the TSA Precheck line (my ticket had the little Pre heck logo on it) but the check-in dude did not give me the laminated poster board that said "Precheck" on it. I don't fly often enough to have noticed, so when I got to the security apparatus 15 feet further I was treated as non-Precheck. It did not matter that I could show my ticket had the appropriate logo on it. No card, no Precheck. One more slap in the face from the Security Theater.