1.   The purest zirconium is used as a safety coating for nuclear fuel rods and can be used in munitions, including cluster bombs.

2.   Zirconium is used as a safety coating for nuclear fuel rods and can also be used in the process that produces plutonium, a fuel in nuclear weapons.

3.   Zirconium is used as a cladding material, a safety coating for nuclear fuel rods, Jones said.

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