This is the one good thing about America.
Free Speech did what it was designed to do. It provoked discussion and multiple sides did infact get together to discuss issues. This is much better then GW Bush's policy of dealing with "terrorist" in a larger scope. The issues came out and I guess he did infact deny the existence of the holocaust (atleast the news says he said something to the effect of :I would like more documentation of this event")
Anyway It was definitly a good idea to let him have a forum and discuss, grill , argue, troll or whatever verb you wish to apply to understanding his beliefs