1.   Depleted uranium is used in the nose of armour-piercing shells because its density helps it to punch through modern tanks.

2.   Depleted uranium is used to make anti-tank shells more deadly, and tank armour less penetrable.

3.   Plutonium is not found naturally on earth, but it is produced whenever uranium is used in a nuclear reactor.

4.   But the three countries that use depleted uranium to produce weapons, France, Britain and the United States, denying any link.

5.   Defense analysts say that while depleted uranium has been used less in Afghanistan than in the Kosovo conflict, conventional explosives will litter the country with pollutants.

6.   During early research, Farr had asked a colleague, Dr. William Steinfield, to study whether it was possible to use uranium rather than boron.

7.   Industries that now uses lead weights could use depleted uranium instead and save space, engineers say.

8.   Pakistan could still have developed its bombs, however, because its weapons used enriched uranium, not plutonium.

9.   She was convinced that processed uranium had been used in the foundation of the building.

10.   Such enriched uranium can be used as a nuclear-bomb trigger or to create different, easily transportable radiation-spreading weapons.