 After Cheng and Duan are accosted by rioting students, after the photo   session. They are being carted through the streets on handcarts. Na Kun is   following, on foot. They discuss first the student revolutionaries, and then   the incident at Old Man Zhangs house, which is now a coffin shop. Dieyi   mentions that he was there the day before; Na conjectures that he was   probably looking for the sword. (0:51) 