Authorities in the Chinese city of Nanjing are under fire after a publicity stunt that involved a high-end Ferrari and a Ming dynasty wall. The event was marking Ferrari's 20 years in China. The driver of Ferrari literally burned rubber on top of the wall, leaving tire marks atop the 600-year-old wall. The Chinese have taken to the Internet to voice their complaints. Audie Cornish talks with Rob Gifford, China editor for the Economist, about the incident.