Four and a half months after returning from the battlefields of Iraq, Lance Cpl. Christopher R. LeBleu lies in a hospital bed in Loma Linda, hooked up to machines and monitors working to keep him alive. LeBleu, 22, stepped off a transport plane in September, lucky to have survived seven months in Fallouja and other treacherous corners of Iraq. Twenty soldiers from his battalion based in Twentynine Palms have died in that country. A month after returning to California, LeBleu decided it was time to get on with life, and he married his hometown sweetheart. But now LeBleu, a native...