Americans may view their soldiers as knights in shining armor, but in Iraq, soldiers are often short on protection, particularly while riding their mechanized steeds. As casualties rise, the Pentagon is rushing to equip its soldiers and vehicles with new and better armor. In the short term, soldiers will get body armor upgrades that better guard previously vulnerable areas like the groin and sides of the body. Some vehicles, meanwhile, will be getting special reactive armor designed to thwart rocket attacks. In the long term, however, a soldier's best protection may come from new technologies being developed by military laboratories...