I don’t think anything about Vietnam really “haunts” me, but as I look back on the experience I know that my survival, when so many others did not survive, had nothing to do with my own personal qualities.  I wasn’t tougher, smarter, more courageous or somehow a better soldier than anyone who didn’t survive.  I was just luckier.  For me, that realization is something I think about almost every day, even after so many years have passed.