So the legislature admits they passed a law with no idea what its impact would be.
That is only because they didn't listen to their constituents. Everyone ELSE knew what the impact would be, except for the people passing the law.
If a plane blew up, the airline would get sued for about a figure that an actuary could neatly estimate.
Anyone can estimate it, it is very very very close to 0.
But the TSA grabs everyone at the start of the terminal. The terminals are used by multiple airlines. How do you see that getting broken up by airline?
The same way everything else in the airport is broken up by airline, as I'm sure it was done before 9/11. Or better yet, don't do any security at all!
There are airports in Europe that have security at the gate, and these are awful. Not only does it not help to get there early, as the gate doesn't open up until a certain time, there is generally no facilities after the checkpoint. No food, no water, no toilets (not always, some have toilets and vending machines)
How are the incentives in the wrong place? The airlines need security theater; people are already fearful of flying, and fear of being killed by terrorists while flying only makes that worse.
This is the problem really. Flying is one of the safest ways to travel. After 9/11 more people drove to their destination and traffic deaths went up.
Suspects are typically described by appearance,
When you have a suspect, or a witness... But when you don't have a suspect, who do you look for?
Without life, Biology itself would be impossible.