They were producing plutonium, as you all know, but we have good reason to believe that the project never truly got underway.

The new reactors produce plutonium that is far harder to use in making nuclear weapons.

Israel claimed the reactor would produce plutonium which could then be used for Iraq's nuclear weapons program already in development.

She said the department was already trying to be more open in its operations and had stopped producing plutonium.

India's program to produce plutonium, a key ingredient in nuclear weapons, has been under way since the 1960's.

The capacity to produce plutonium was increased beginning in 1947.

A Soviet design, built to produce plutonium as well as power.

"It is true that we have not produced plutonium for some time," a senior Administration told reporters today.

In parallel with the work on uranium was an effort to produce plutonium.

Once X-10 began producing plutonium, the pilot separation plant was put to the test.