Venezuela's top diplomat called a senior U.S. official "petulant" and ill-mannered on Wednesday in response to her contention that sanctions were intended to change the government, not topple it.
U.S. Secretary of State John Kerry told Republicans who control Congress on Wednesday they would not be able to modify any nuclear agreement struck between the United States and Iran.
Islamic State militants have desecrated another ancient Iraqi capital, the government said on Wednesday, razing parts of the 2,700-year-old city of Khorsabad famed for its colossal statues of human-headed winged bulls.
The United States has asked Vietnam to stop letting Russia use a former U.S. base to refuel nuclear-capable bombers engaged in shows of strength over the Asia-Pacific region, exposing strains in Washington's steadily warming relations with Hanoi.
