That's the exact reason why 19 Muslim Terrorists were not questioned and prevented from boarding 3 airliners on that morning of September 11, 2001. The airlines are scared to death of the liberal attorneys and judges who will bring them to their knees in the courts for this BullChit. It's easier to just let them on.
If it quacks like a duck and walks like a duck, by golly it's likely a duck. We don't need to be watching the 75 year old white grandmas.