As you know, today is the 50th anniversary of the assassination of JFK, and as you know, there's very little to say about the assassination, its effects on history, and so on that hasn't already been said. One story you probably don't know, though, is the one about how JFK's death destroyed a famous impressionist whose performances had as much impact on the public's idea of what the president sounded and acted like as the man himself did. In the piece below, which we originally ran two years ago, Alexander Woo introduces you to Vaughn Meader, perhaps "the single biggest crash-and-burn story in the history of showbiz."