31.   It is suspected of using plutonium from its reactors to build weapons.

32.   Japan plans to use the plutonium for nuclear fuel.

33.   Japan is one of the few nations still planning to use plutonium, prime material of nuclear bombs, for energy production.

34.   North Korea has long been suspected of developing nuclear weapons using plutonium harvested from its nuclear power reactors.

35.   The controversial breeder reactor uses plutonium, a highly toxic and radioactive substance that can also be used to make nuclear weapons.

36.   The government and power companies say the mixed fuel program is the most reliable method of using plutonium.

37.   The one dropped on Nagasaki, which used plutonium and had a different design, also owed much to Peierls.

38.   The North was suspected of using plutonium from its present reactors to make nuclear weapons.

39.   The plutonium is then used to generate nuclear power.

40.   The program to use plutonium in nuclear reactors has been plagued by delays.