A catch is a catch, but only a real catch for securing flights when they stop actual restricted weapons/explosives/incendiaries. But then there is the “big catch on the snipe hunt”. For example, TSA catching “realistic replicas” in checked-in luggage and then making an issue of it. That just goes to show that the TSA has problems with real threat identification and generally loses its focus on actual threats by getting tied up too much with things that don’t add to securing my flights.