@blatham,
Quote:On the other hand, it doesn't follow that nothing can be or should be done [about terrorism], of course. If the US and other nations had not established security systems in airports to prevent another 9/11, we can be certain that trick would have been duplicated.
That's true, but what I mean is that there are virtually unlimited ways to commit terrorism, many of which can't be defended against without completely unacceptable changes to our society.
Actually, I'm surprised at the lack of inventiveness of terrorists. I think that's mainly due to most potential ones being mentally disturbed individuals rather than state sponsored and organized as in 9/11.