Pentagon's Brain Note Torture by Government Agencies history in Vietnam parallel to Targeted Individuals

I read in Pentagon's Brain, that ARPA researchers interviewed POWs in VIetnam and found that they claimed they were tortured by the Pro american vietnamese government and that they when these researchers passed these grievences on to the Pentagon that they were dismissed and the pentagon claimed they were lying making up stories. Reminds me of DARPA and Targeted Individuals today around the world or Schizephrenics and Psychiatry. Similarly there have been systems in place to dismiss claims of torture by government organizations or agencies