China investigates search engine Baidu after student's death

China has launched an investigation into search giant Baidu after the death of a student who tried an experimental cancer therapy he found online. Wei Zexi, who died last month from a rare form of cancer, had sought the treatment from a hospital that came top of the list on his Baidu web search.Baidu has come under fire for allegedly selling listings to bidders without adequately checking their claims. Chan Siu Kam reports.

Baidu Source: Getty Images-Andrew Holbrooke-Corbis