At the very least, my model of a stupid terrorist would wear civilian clothes, typically a suit —maybe one that doesn't fit well. I mean, it takes a staggering

At the very least, my model of a stupid terrorist would wear civilian clothes, typically a suit —maybe one that doesn't fit well. I mean, it takes a staggering amount of stupidity to not even think of blending in. I don't disagree with your point though: if I'm charged with spotting danger, I would have a hard time distinguishing "suspicious" from "unusual". And despite what I said above, I'm not even sure I should.