Former secretary of state Hillary Clinton turned away a high-ranking Chinese defector who sought political asylum after the communist police chief sought refuge in a U.S. consulate in southwestern China four years ago. Critics say Clinton’s handling of the defection of Wang Lijun, a close aide to a regional Communist Party leader, was a blunder and lost opportunity for U.S. intelligence to gain secrets about the leaders of America’s emerging Asian adversary. Instead of sheltering Wang and granting him political asylum, Clinton agreed to turn him over to Chinese authorities in Beijing, and claimed he was not qualified for American...