Hillary Clinton, U.S. secretary of state, left, and Nguyen Tan Dung, Vietnam's prime minister, meet at the Office of the Prime Minister in Hanoi, Vietnam, on Thursday, July 22, 2010. The U.S. is ready to take relations with Vietnam to a "new level" 15 years after establishing diplomatic ties with its former adversary, Secretary of State Clinton said. (Photographer: Nelson Ching/Bloomberg)

Photo by: Nelson Ching

Hillary Clinton, U.S. secretary of state, left, and Nguyen Tan Dung, Vietnam's prime minister, meet at the Office of the Prime Minister in Hanoi, Vietnam, on Thursday, July 22, 2010. The U.S. is ready to take relations with Vietnam to a "new level" 15 years after establishing diplomatic ties with its former adversary, Secretary of State Clinton said. (Photographer: Nelson Ching/Bloomberg)