Watch the video. Bill doesn't tolerate these nutjobs. I've posted before about how he addresses this issue, and while he isn't as "on" this time, he gets the point across:
"We look like idiots, folks, denying that the people who murdered our fellow citizens did it, when they are continuing to murder people all around the world. So we heard from you, you go away."
I didn't vote for him and didn't like him as President, but he's 100% right on this issue.