> what would be the way that you would know that it is working? Probably a decrease in successful terrorism attempts or an increase in thwarted terrorism attem

> what would be the way that you would know that it is working? Probably a decrease in successful terrorism attempts or an increase in thwarted terrorism attempts (with neither being attributed to something else instead). I don't think there's any value to this question though, since it can be used to justify literally anything. If a policy needs to prove its own value, then it should be constructed in a way that allows its value to be tracked.