(AP) — The talk in American Legion and Veterans of Foreign War halls and barrooms across Montana has been about Sen. John Walsh since the Democrat linked a cribbed research project he wrote in 2007 to post-traumatic stress disorder. How those veteran voters respond means a lot to Walsh, who has built his election campaign for the Senate around his 33-year career in the National Guard and his proposals to help veterans and their families. [...] is PTSD an excuse or a legitimate factor in the apparent plagiarism in Walsh's strategy research project written for the U.S.