11.   Iran says it wants the reactors to produce electricity, not make plutonium for bombs.

12.   The fall in world uranium prices in recent years, however, has made plutonium processing a relatively expensive option.

13.   Zirconium is used as a safety coating for nuclear fuel rods, and can also be used to make plutonium.

14.   He also said his country was making plutonium but only to produce energy.

15.   Even now, China is helping Pakistan build a nuclear reactor suited for making plutonium that can be used in smaller and stronger weapons, The Washington Post said.

16.   Zirconium, a metallic chemical element, is used in the safety cladding of nuclear fuel rods in reactors and can also be used to make plutonium.