Experts: Iran Housing Nuke Materials in North Korea, Syria

Kim Il Sung Square in the center of Pyongyang, North Korea / AP

LAUSANNE, Switzerland — A top State Department official on Monday dismissed reports that Iran may be hiding key nuclear-related assets in North Korea and implied that she was unaware of the possibility, despite the publication this weekend of several articles by top analysts expressing alarm at the extent of nuclear cooperation between Tehran and Pyongyang.