The audience will probably include a bunch of Code Pinko types as well, who will be constantly interrupting Bush's answers with screaming and sign waving, all in an attempt to once again throw him on the defensive, as well as to get themselves ejected on national TV so the media can attack the administration for it's "disregard of the First Amendment rights of people with legitimate dissenting points of view."
Just like Kerry can't help being a pompous, arrogant, condescending stiff, the Rats can't help WAY overdoing their idiotic staged protests.
Cokie Roberts on This Weak w/Georgie said the townhall debate is not yet certain to happen because a disagreement on this very issue. Pubbies are wary the audience will be stacked against and will likely prevent it.