Don't mess and argue with the US TSA are the key words here.
Right after 9/11 a, AF French captain ( and the Airline) learned it the hard way . while being screened and patted a bit too close, the captain made this remark : "common guys , I'm the captain , do you think I am going to hijack my own plane ? " he was immediately taken aside in a room , the duration of which meant the flight had to be cancelled, If my memory serves me well. AF pilots are now extremely polite when screened ..