Nah. Not surprising. The guy could have been working ground stations (the 1/2 of the system that’s not in orbit).
Yes, but it was NORTH Viet Nam—Hanoi—in 1972.
“Hanoi Jane” Fonda visited Hanoi in July 1972.
December, 1972, we sent the largest B-52 bombing missions of the war against Hanoi & Haiphong, in addition to the ‘regular’ bomb runs throughout that year.