I've long since forgotten the name of the author or the title of the story, but it was about two guys in a nuclear missile silo who have either been forgotten or have survived The Big Number Three, WW3. It's told in a first person point of view, and the author/narrator is talking about how if he pushes a button, the bird flies. He also says he's tried to reach both launch keys, but the distance is too great. I think the story starts with the line "Because of an oversight, we've been here two weeks. We've been here two weeks because of an oversight..." Any help on this one?