In a letter written Friday and released to the public Monday, lawmakers from both sides of the aisle expressed concern to Secretary of State John F. Kerry over "harassment and abuse" that Chinese authorities are believed to be inflicting on family members to Chen Guangcheng, a blind Chinese activist living in the United States.
China says the United States is "lifting a rock only to drop it on its own feet" in issuing the annual Pentagon report on the Chinese military.
U.S. intelligence agencies traced a recent cyber intrusion into a sensitive infrastructure database to the Chinese government or military cyber warriors, according to U.S. officials.
U.S. and Chinese military officials held their highest-level talks in nearly two years Monday in Beijing, with cybersecurity high on the agenda.
The third victim in the Boston Marathon bombing was a Chinese graduate student at Boston University.
Blind Chinese dissident Chen Guangcheng, who was at the heart of a major diplomatic tug-of-war between Beijing and Washington a year ago, on Tuesday accused the Chinese government of breaking a promise not to harm his family.
The Chinese government's recent decision to build an array of new dams on rivers flowing to other countries seems set to roil inter-riparian relations in Asia and make it more difficult to establish rules-based water cooperation and sharing.
China continued moving tanks and armored vehicles and flying flights near North Korea this week as part of a military buildup in the northeastern part of the country that U.S. officials say is related to the crisis with North Korea.
China confirmed this week it will sell a new 1,000-megawatt nuclear reactor to Pakistan that the United States says would violate Beijing's obligations under a nuclear supplier control group.