Communist intelligence was located everywhere in the all of organs of US puppet government,from President palace to Army, Police,Congress , including the US embassy ! They didn't need info from radio!
amazing youd have a generation of people go through the debacle of vietnam, then that same generation leads us into iraq & afghanistan repeating the same mistakes.
The talk starts haltingly at minute 18. Before that you get breath-taking details such as the monographs being published with spiral bindings. I may try to come back to listen more, but a bad beginning makes for a bad ending.
32:41 , crossing the national borders in 1971 , to call Lam Son 719 a devastating blow against the enemy is just to repeat Nixons exaggeration of the success of Vietnamisation . Which leads into their comments on the role of advisors and how that role changed with the buildup and US forces took on the primary combat roles . A lesson lost to history it seems , given the surprise at the speed of the ANA collapse all these decades later .