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TO FROM SUBJECT: 5010-108 OPTIONAL. FORM NO. 10 MAY 1962 EDITION GSA FPMR (41 CFR) 101-11.6 UNITED STATES GOVERNMENT Memorandum : SAC (164-81) (P) DATE: 12/1/71 b7C UNSUB; NORTHWEST AIRLINES Dé PORTLAND TO SEATTLE 11/24/71 CAA - HIJACKING; EXTORTION 00: SE b6é RE: SUSPECT bie On 11/30/71 bé advised that Chief o olice — GIARDINO who previously requested that his identity be kept b7D confidential. HE AGAIN REITERATED THIS REQUEST THIS HIS IDENTITY BE KEPT CONFIDENTIAL but stated he had no objection to speaking with the FBI directly in this matter. b6 b7C b7D 71. Concerning this latter call,[_____—__—Jadvised — that it was apparently prepaid and no record would be made b7D of its origin to the best of his knowledge. On 12/1/71, sAL__—Jadvised that it - would not be possible to determine the origin of an incoming — call which is prepaid. The receiving end records reflect only those calls which are collect. PBC/djs (3) : x (Sl Buy U.S. Savings Bonds Regularly on the Payroll Savings Plan DB Cooper-2419