I read it in the National Geographic:
“Others think that aliens are alive and well and living in the White House.”
Oh, but wait. It was in their April Fool’s special edition, so perhaps it’s not true?
In any case, the referenced article is an interesting, though incomplete, overview of a variety of notable AF hoaxes, including the one about the Swiss spaghetti harvest .
A famous hoax from last year was created when somebody manipulated two photographs, reversing the helicopter photograph and pasting the breaching Great White shark.
Center: Photograph by Lance Cheung/U.S. Air Force Photo
Bottom: Photograph copyright Charles Maxwell