Law & Society

The White House has contacted China's Foreign Ministry over the detention of an American businesswoman accused of spying, a spokesman said on Tuesday, in a case that blew up just as President Xi Jinping began a visit to the United States.

Democratic U.S. presidential candidate Hillary Clinton, who has long avoided a firm position on the Keystone XL oil pipeline, broke her silence on Tuesday and said she opposed it.

U.S. national security adviser Susan Rice issued a stern warning to China on Monday before President Xi Jinping's visit that state-sponsored cyber espionage must stop, calling it a national security concern and a critical factor in U.S.-China relations.