You know, one of the things I prefer about the British is their culture of heckling.
Not only is heckling expected, but politicians are expected to be able to deal with it.

I think that it would result in more substantive campaigns, because the average voter/heckler has the ability to drive the focus, and politicians have to be quick on their feet.

I think it makes it harder for someone to become president just because they are the idiot son of a previous president.

That being said, if America were to adopt this model, we would need remedial education for hecklers, because lordy, this is lame:

Two men were just removed from a high school auditorium where Sen. Hillary Clinton is speaking, after they stood up during her speech, lifted signs and chanted “iron my shirt.”

Seriously, if you are going to do this, spend some time coming up with something that makes her look bad, not something that makes you look bad.

This is just so “high school”.