Local Vietnam Veterans have been presented with an an official 50th Anniversary Lapel Pin from the Department Of Defense.  5th District Congresswoman Elizabeth Esty and State Representative Brian Ohler, who is a veteran, presented the pins Saturday in Torrington.  Ohler says many of the local heroes are still uneasy about their service and the experiences they faced when they came home.  He says the debt of gratitude and "welcome home" are long overdue.  Pins are still available for veterans who served on active duty between November 1955 and May 1975, regardless of location.