No. Not on 9/10, and not on 9/12. "Changed security environment?"
Nothing has changed. There have always been terrorists. 9/11 was just the first time this particular kind of attack was used.
That vulnerability was patched out the very next day (or otherwise quickly) - locked cockpit doors and air marshalls. Add to that the bonus of any guy standing up to hijack a plane will likely be throttled by angry passengers.
These checks are _not_ a necessity. We could go back to private screeners and metal detectors and be safe enough.
Nothing has changed. There have always been terrorists. 9/11 was just the first time this particular kind of attack was used.
That vulnerability was patched out the very next day (or otherwise quickly) - locked cockpit doors and air marshalls. Add to that the bonus of any guy standing up to hijack a plane will likely be throttled by angry passengers.
These checks are _not_ a necessity. We could go back to private screeners and metal detectors and be safe enough.