Peggy Harris of Vernon, Tex. never got a knock at the door, never got a telegram, never got anything definitive explaining what happened to her husband Billie during World War II. And so, in the absence of answers, she has remained dutiful to this day. . . . Wrote repeatedly, in fact, asking for any information about the fate of her husband. The last letter, in 2005, was directed to Rep. Mac Thornberry of Texas, who also happens to be vice-chairman of the House Armed Services Committee. . . . Note: After this story aired, Rep. Thornberry's office issued an...