Didn't Penthouse "discover" a "long-lost" sex film of her 25-30 years ago? I seem to recal seeing stills of a chick who sorta looked like her in the mid-to-late eighties in an anniversary issue.

Edit: Also, if the FBI had anything in it's vaults, it would have been a grainy, black-and-white film, not a "tape." Sex didn't make it to video until the mid-sixties. Didn't anyone see Auto Focus?