This is literally no different than driving up to the same airport and walking in with a weapon and attacking folks. The present system works well, and there is no reason to change it.
Unfortunately if you flag a bag as containing a gun, you are far more likely to have it 'lost' than used in a crime. That's exactly the reason they have to be unflagged, and not use TSA locks.
Unfortunately if you flag a bag as containing a gun, you are far more likely to have it 'lost' than used in a crime. That's exactly the reason they have to be unflagged, and not use TSA locks.