On tonight's Report, Robin Wright (the journalist/author, not the Sean Penn ex-wife) stopped by for an interview with Stephen Colbert about her new book, Rock the Casbah, which argues that the recent Middle East uprisings prove the United States' post-9/11 policy of "gunboat diplomacy" was both misguided and ineffective. And in a rare instance of earnestness—mixed in with his requisite schtick, of course—Colbert repeatedly challenged Wright's arguments. Here's a video of the interview's more combative moments.