I don’t know which answer is the correct one, but those are your options.

Click here for a short-but-telling proof-positive indictment of De Longe’s “insider access to UFO truth” by Lorin Cutts (hat tip to Jack Brewer at the UFO Trail for this item). The essay features a picture posted by De Longe as proof of a secret UFO program / craft. Too bad it comes from Taken, a Spielberg TV show circa 2002.