Originally Posted by
MrHalliday
OK, thanks !
I am asking about written guidelines, one way or the other.
Maybe it is just not addressed in writing anywhere.
To save time, I try to remember to just use DL.
Actually it is specifically stated in writing. Please google ACLU/Beirfeldt versus the TSA (2009) and read the injunction that came from the case. It clearly and definitively states that "safety screening procedures be strictly limited to passenger searches for the purpose of safeguarding flight safety. TSA must adhere to their limited mandate of protecting flights against weapons or explosives".
It does not get much clearer than that. These are written guidelines for the TSA.