"North Korea in February 2007 agreed with the U.S., China, Russia, Japan and South Korea to dismantle its nuclear program in exchange for 1 million metric tons of fuel oil, or equivalent aid, and normalized diplomatic ties with the U.S. and Japan.
Japan has said it won't share the cost of energy assistance until North Korea accounts for Japanese citizens it kidnapped in the 1970s and 1980s. "
From Bloomberg.com website: http://www.bloomberg.com/apps/news?id=20601101&sid=akPkZnXiPgFE&refer=japan
North Korea kidnapped several Japanese women and children by boat from the coastlines of northern Japan. These women and children were forced to live in North Korea so that the North Koreans could learn to speak the Japanese language & infiltrate Japan. I heard this story as one of my many Japanese adopted cousins was abducted at age 12.
Additionally, the U.S. has not taken North Korea off the list of countries that support terrorism;-due to North Korea's failure to provide a Declaration of their Nuclear usage to the U.S.