This is fricking awesome. Colbert goes on stage before the president and hundreds of politicians and diplomats and just roasts the US government. Kinda long, but very funny: http://video.google.com/videoplay?docid=-869183917758574879&q=genre:comedy&hl=en I'm about 8 mins in so far, and bush's face is bright red lol. Hard to tell if he thinks it's funny or if he's just PO'd.
Definitely not the time or place to do it - he's there to be funny for an audience and lucky to be there, and not there to display his personal grievance with the president. Pete