The FBI says it's simply clarifying the fact that the state law doesn't apply at federal security checkpoints. The new penalties will go into effect June 1. The story says 113 guns were found by screeners at that particular airport. But Atlanta isn't an isolated case. The Transportation Security Administration (TSA) fired its head of security, Peter Neffenger, this week amid an uproar over long lines at security checkpoints, a scrutiny of bogus payments, and undercover investigations have show that a large percentage of weapons are making it through airport security checkpoints.