North Korea has resumed the construction of two nuclear reactors suspended under a 1994 agreement with the United States, a Japanese newspaper reported Thursday. North Korea restarted building a 50,000-kilowatt reactor in Yongbyon and a 200,000-kilowatt reactor in Thaechon _ both are plutonium-producing graphite-based _ Japanese economic daily Nihon Keizai said, quoting unidentified U.S. government and other sources. Japan's Foreign Ministry said it couldn't confirm the report. North Korea had suspended the construction of the two reactors under the 1994 deal in exchange for energy aid and two light-water reactors that are less likely to be used in nuclear...