WASHINGTON — The State Department accused Caracas city officials of complicity Friday in an attack on the car of U.S. Ambassador William Brownfield in the Venezuelan capital. Undersecretary of State Nicholas Burns summoned Venezuelan Ambassador Bernardo Alvarez to the State Department and told him that Venezuela was in violation of an international treaty that requires the host countries to ensure the safety of foreign diplomats, department spokesman Sean McCormack said. The incident "clearly was condoned by the local government," McCormack said. Pro-government activists bombarded Brownfield's car with fruit and vegetables and a group of motorcyclists chased the convoy, at times...