I just don't get these guys. They're willing to stand on corners and condemn the beliefs of their fellow Muslims, and they openly proclaim that Muslims are supposed to terrorize the enemies of Islam. But they are absolutely terrified of engaging in public debate and showing people that Muhammad was a true prophet.
It's easy to shout your views; it's something else entirely to defend them in a reasonable manner. You can write your views in magic marker on a piece of poster board ("Revolution Sharpie"?), but that does nothing to show that your views are correct.
I suppose that the most interesting thing about this video is that it shows how successful America is. Let's face it, in practically any Muslim country, this interaction would have ended in bloodshed. Here in America, however, we manage to keep a strained peace between groups that would otherwise annihilate each other.