Think about this. The Sept. 11 hijackers brought nothing through security. They got their box cutters smuggled onto the planes from the tarmac. They had accomplices who no one apparently has yet found.
The federalizing of airport security will not work so long as those hired are of low intelligence and poorly paid. Screening bags is boring work. How do you hold their attention?
We already have plenty of federal regulations for the airline industry, but mostly civilians administer them, from pilots to flight attendants. As long as people are willing to die for their cause they'll figure out another way to kill us. Besides, I don't think the next attack - if there is one - is going to come from the sky. While we're focused on planes, they may be focusing on the ground.