Top US diplomat for Asia steps down

The top US diplomat for Asian affairs, Kurt Campbell, stepped down from his post Friday after almost four years in the job helping to steer America's pivot to Asia, a US official said.The top US diplomat for Asian affairs, Kurt Campbell, stepped down from his post Friday after almost four years in the job helping to steer America's pivot to Asia, a US official said. Campbell has served as assistant secretary of state for East Asian and Pacific Affairs since June 2009, and has criss-crossed the region since taking over from his predecessor Christopher Hill.