I asked a boomer south viet expat for their opinion on this, they said "maybe they're playing"
My dad in Vietnam. His first wife whom I know only from Facebook sent me this. I asked him about it and he said they regularly interrogated locals for info. I never knew this side of the man.
People need to keep this in mind, our fight is with is for material conditions. Put anybody in the right conditions and they can become a monster. I was. When I was in the military my mindset was purely fascist. As much as we can and should fight individuals in the moment, we need to be charitable to individuals and ruthless to systems. People can and do change on their own accord, systems need to be pulverized to change.