Originally Posted by
Clipper_fan
I understand they put you in the AIT when you set off the random alarm on the metal detector to save you from getting a pat down. A few seconds of millimeter wave bouncing off instead a friendly pat down isn't a bad deal in reality...
Unless you are physically incapable of assuming and holding the position in the AIT. Then a random alarm means trying to keep an eye on your bags while waiting for your groper to arrive. You may have experienced 'friendly' patdowns in the past. I have never experienced such a thing at a US airport.