He was not detained by TSA. Good lord, you people really need to get your facts straight. He was not in custody. He was not arrested, he was not held. He was, however, not allowed to proceed into the sterile area without undergoing screening.
If you get to a guard station at, say, a military base and they say "You can't go past this point, you don't have clearance" you have not been detained.
Look, you want your self-righteous crusade against TSA, that's fine. Get your facts right, or you looks just as bad as all the other nutjobs with self-righteous crusades.
I say we just lock these people up for 3-5 years to teach them a lesson instead. That seems far more reasonable.