Former Sen. Max Cleland, who has battled bouts of depression since losing an arm and both legs in Vietnam, is being treated for post- traumatic stress disorder. Cleland, who represented Georgia in the Senate from 1997 to 2003, said he believes the condition _ cases of which are increasing rapidly among Vietnam war veterans _ was in part triggered by the ongoing violence in Iraq. "I realize my symptoms are avoidance, not wanting to connect with anything dealing with the (Iraq) war, tremendous sadness over the casualties that are taken, a real identification with that. ... I've tried to disconnect...