"It was back in the days just after an ex employee of PSA (the original, not the commuter) got aboard a BAE146, went to the cockpit and shot both pilots while in flight."
This guy, David Burke, was a fired USAir ramper who decided to take out his former boss, a passenger on this flight. He used AN ID card still in his possession to bypass screening. As a result of his murder of the pilots & a planeload of people, pilots were required to be screened, while rampers were given continued access to the downstairs doors with NO screening.
This government reaction to his rampage was & continues to be BEYOND ABSURD!