You ask: "So how did the tools and talents developed by Bill Harvey for ZR/RIFLE and Operation MONGOOSE get exported to Vietnam? Kennedy immediately ordered (William R.) Corson to find out what had happened and who was responsible. The answer he came up with: “On instructions from Averell Harriman…. The orders that ended in the deaths of Diem and his brother originated with Harriman and were carried out by Henry Cabot Lodge’s own military assistant.”   The CIA got involved in  Vietnam