Hillary Clinton, U.S. secretary of state, speaks at a luncheon in Hanoi, Vietnam, on Thursday, July 22, 2010. The U.S. said it will intensify sanctions against North Korea for sinking a South Korean warship, targeting members of Kim Jong Il's regime and the foreign banks that help sustain the country's weapon's industy. (Photographer: Nelson Ching/Bloomberg)

Photo by: Nelson Ching

Hillary Clinton, U.S. secretary of state, speaks at a luncheon in Hanoi, Vietnam, on Thursday, July 22, 2010. The U.S. said it will intensify sanctions against North Korea for sinking a South Korean warship, targeting members of Kim Jong Il's regime and the foreign banks that help sustain the country's weapon's industy. (Photographer: Nelson Ching/Bloomberg)