Bill Clinton takes on heckler January 31, 2008 Posted: 02:00 PM ET Watch Bill Clinton take on a heckler Thursday. (CNN) – Bill Clinton engaged with a heckler head on Thursday at a Denver campaign stop. The former president had just begun his speech when a man began to shout about 9/11 conspiracies. As security attempted to escort him out, Clinton stopped his speech, saying, "What are you screaming about? Let him talk." "Are you one of those it-was-an-inside-job guys? Let me tell you something… I let you be rude and interrupt me, scream at the top of your lungs....