The U.S. government [planned] false flag attacks with Soviet aircraft to justify war with the USSR or its allies, newly declassified documents surrounding the assassination of President John F. Kennedy show. In a three-page memo, members of the National Security Council wrote, "There is a possibility that such aircraft could be used in a ... provocation operation in which Soviet aircraft would appear to attack US or friendly installations to provide an excuse for U.S. intervention." The memo shows that the department, along with the CIA, considered buying Soviet aircraft to stage the attacks, even getting estimates from the Air Force on how long it would take and how much it would cost to produce the planes domestically and covertly. The document also outlined the possibility of purchasing such aircraft from non-Soviet Bloc countries that had received planes from the USSR, or from pilots that had defected, instead of building them domestically. The CIA deemed those plans too risky. It is unclear when the memo was written or circulated. The NSC staff mention a meeting on March 22, 1962, when a "Special Group" discussed the attorney general's questions about acquiring Soviet aircraft. The document was last reviewed by the CIA in February 1998, and a stamp shows it was declassified in March 2016. But, strangely, the document's cover letter shows a date of "00/00/00."