The recent release of a JFK document pertaining to Hitler escaping to Argentina has given new life to long-standing but ignored evidence that the US made a pact with the Nazis.
Even Hoover didn't know until 1947. The memo from him ORDERING all efforts to explore the rumors (even then) that he and Mrs. Hitler made it out CEASE IMMEDIATELY is a big sign.
Below is the story, with photographs, as I understand it.