marine corps lieutenant colonel brian bower. >> nobody went out to purposefully hurt again, soldiersmen sailors and marines. but people are suffering from exposure to it afterwards. and the military's response has been very similar to agent orange. which was at first denial, assessment, acceptance of culpability, and treatment. we seem to be going through those same phases now. >> sreenivasan: the veterans we spoke to say while they wish they weren't sick, they'd still serve in iraq and afghanistan all over again. >> i'm proud of my military service. i'm proud of what the military has done over there. if i had known that this would be my outcome i still would have continued and done exactly the same thing. >> sreenivasan: meanwhile, k.b.r. says if they and other battlefield defense contractors are allowed to be sued, it's unlikely they would deploy with the military in the next war. >> if they are exposed to these lawsuits for decades of litigation and potentially tens if not hundreds of millions of dollars in liabilities, then it's very likely that these companies are going to think