This video is the 8th video of NOVA: Judgement Day - Intelligent Design on Trial. By using the complexity of bacterial flagellum as an example, Dr. Behe argued that some biological machinery are irreducibly complex and therefore must have been arranged to fulfill a purpose (that's when they infer design). Dr. Behe even quoted Dr. Derosier's paper to support his claim. In this video, you can see what did Dr. Derosier respond to Dr. Behe's quotation, and see how did Dr. Miller reason the flaws of "irreducible complexity" claim.