SHANGHAI (AP) - Officials scrambled Tuesday to resolve severe gasoline and diesel shortages in China's south and east amid complaints that government price controls are worsening supply problems. Drivers in the southern province of Guangdong were waiting for hours for gasoline in lengthy lineups, sometimes leaving with empty tanks when supplies ran out, state media reports said. In the southern city of Shenzhen, which borders Hong Kong, more than half of all gas stations closed Monday as shortages worsened, the Hong Kong-based newspaper South China Morning Post reported. Although disruptions to tanker traffic due to recent typhoons were one factor,...