As broker later posted, Roger Hilsman’s father collaborated with the Japanese for favorable treatment in the Manchurian POW camp. His family was scorned by WWII Army veterans who knew this story and witnessed his betrayal.
Another comment:
Regarding Hilsman, just another legend in his own mind IMO. His bona fides as a “...Merrill’s Marauder...” are beyond suspect, his insurgent and counterinsurgent experience is vastly over rated. There may be some fans here but I’m not one...
He, like every other senior figure involved in the debacle that was Viet Nam (with the exceptions of Brute Krulak, Matthew Ridgeway and (much as I hate to admit it) Wayne Morse — plus a very few others lower in the food chain...) has much to answer for...