Man pours water on Baidu CEO at AI conference

A man burst on to a stage and poured water over the head of Baidu CEO Robin Li as the founder of China's dominant search engine spoke at a company-sponsored event on Artificial Intelligence on Wednesday.Highly visible public acts of defiance are relatively rare in China's big cities where security measures can be tight and celebrities like Li generally travel with a pack of security.Baidu has faced enormous criticism in China in recent years after a medical advertising scandal and discontent wit