CANBERRA (Reuters) - A Chinese diplomat who has sought political asylum in Australia and claims spies are hunting him for aiding pro-democracy groups has contacted a U.S. consulate about his situation, an official said on Tuesday. A spokeswoman for the U.S. embassy told Reuters that Chen Yonglin, a 37-year-old political affairs consul at China's consulate in Sydney, had contacted a U.S. consulate in Australia about his situation, but was unable to comment further. Local media reported on Tuesday that Chen had asked if he could defect to the United States. Chen, who has worked in Sydney for the past four...