The United States already has all the fissile material it needs for weapons purposes.

The U.S., having enough, no longer needs to produce plutonium or enriched uranium for weapons purposes.

The International Atomic Energy Agency has said that without full inspections it cannot guarantee that fuel is not being diverted to weapons purposes.

He reiterated that the enrichment was performed for purely civil power purposes and not for weapons purposes.

An Administration official said inspectors had determined that North Korea has not diverted any of the fuel removed from a reactor for nuclear weapons purposes.

In 2002, the administration asserted that North Korea was developing a uranium enrichment program for nuclear weapons purposes.

The machine tools would be useful for a variety of weapons purposes.

Energy Department officials have told Congress that there were no plans to produce plutonium and enriched uranium for weapons purposes.

Another, more recent approach, centers on 'capping' the production of fissile material for weapons purposes, which would hopefully be followed by 'roll back'.

Private chemical plants would also be inspected to assure that chemicals with both civilian and military uses were not being diverted for weapons purposes.