Sixteen Indiana National Guard soldiers have sued the Houston-based defense contractor KBR, saying the company knowingly allowed them to be exposed to a toxic chemical in Iraq in 2003. The soldiers were providing security for KBR during repairs of a water treatment plant in southern Iraq shortly after the US invasion. The suit claims the site was contaminated for six months by hexavalent chromium, “one of the most potent carcinogens” known to man. It alleges that KBR knew the plant was contaminated but concealed the danger from civilian workers and soldiers. We speak with one of the soldiers and with the lead attorney in the case.