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The sun rises over the bridge on the banks of the Yalu River in the Chinese border town of Dandong opposite to the North Korean town of Sinuiju on February 10, 2016. North Korea has restarted a plutonium reactor that could fuel a nuclear bomb and is seeking missile technology that could threaten the United States, Washington's top spy said. AFP PHOTO / JOHANNES EISELE / AFP / JOHANNES EISELE (Photo credit should read JOHANNES EISELE/AFP/Getty Images)

The sun rises over the bridge on the banks of the Yalu River in the Chinese border town of Dandong opposite to the North Korean town of Sinuiju on February 10, 2016.  North Korea has restarted a plutonium reactor that could fuel a nuclear bomb and is seeking missile technology that could threaten the United States, Washington's top spy said.   AFP PHOTO / JOHANNES EISELE / AFP / JOHANNES EISELE        (Photo credit should read JOHANNES EISELE/AFP/Getty Images)