U.S. Had Doubts on North Korean Uranium Drive

March 1, 2007
U.S. Had Doubts on North Korean Uranium Drive

WASHINGTON, Feb. 28 — Last October, the North Koreans tested their first nuclear device, the fruition of decades of work to make a weapon out of plutonium.

For nearly five years, though, the Bush administration, based on intelligence estimates, has accused North Korea of also pursuing a secret, parallel path to a bomb, using enriched uranium. That accusation, first leveled in the fall of 2002, resulted in the rupture of an already tense relationship: The United States cut off oil supplies, and the North Koreans responded by throwing out international inspectors, building up their plutonium arsenal and, ultimately, producing that first plutonium bomb.