Well I agree, and ID check is not 'securing a facility'. I can't get over the logic of doing an ID check gives a better chance of catching someone than not doing an ID check, though. It just doesn't make any sense whatsoever.
Its almost like a computer. If I sit in front of it all day and don't turn it on, there is a 100% likelihood that it won't turn on. If I do turn it on, there is a really good chance that it will turn on, but maybe not 100%.
More accurately, it's like it's like a person who has never played baseball before trying out for the New York Yankees. If you don't try then you know you won't make the team. If you do try out, well...
What are you catching? Lets say the bomber didn't bring his ID today. The current practice on the bus is to let him continue on with a request to bring his ID next time. Yeap, he just detonated.
Or, as the security person is walking up to him, oops, he just detonated.
Or, they enforce the ID request, and have him get off of the bus.
Tomorrow, he returns with his ID. They glance at it, he continues on his way... oops, he just detonated.