The National Archives
The FBI set off warning bells about Lee Harvey Oswald the month before President John F. Kennedy's killing.
But President Trump chose to keep a number of the documents secret for another 180 days.
Guard #2: It's better if we do nothing. Maybe no one will notice that America's honor has been stolen. Guard #1 (rummaging around): Hey, wait a minute. Here it is. It's in this box over here.