The horrors of war don't end when the last gun falls silent. Unexploded shells, landmines, and other wartime hazards continue to take lives long after hostilities cease. Depleted uranium - or "DU" - one of the lesser know of these hazards, is spreading disease and death well beyond the battlefields on which it was once deployed. Originally viewed as a waste product in the production of fissionable nuclear material, depleted uranium was found to be effective in the manufacture of armor piercing projectiles and bombs. DU armaments are in use by the United States, Russia and several other nations. The U.S. has used DU armaments in the First Gulf War, Kosovo, Afghanistan and Iraq.