Scott Cameron and Dennis Kanke had a lot in common. Residents of Duluth, Minn., both fought in Vietnam and returned home with traumas that lingered for decades. Both clawed their way out of the pit with the help of therapy and medication. And both fell back into it when the Iraq invasion began more than three years ago, with war scenes on television triggering nightmares and flashbacks. "It all came rushing back," says Cameron, a sinewy 56-year-old who took a bullet in the spine in 1969 and went on to have more than 40 operations. When the depression got really bad, Cameron checked himself into a trauma clinic in 2004, where he spent nine weeks with other war veterans affected by Iraq.