Thanks! That is exactly so. I hope to help him with a reasoned. sourced rebuttal. That link helps.
Most of the reporting is/was from MSM lefty sources. Likewise the info in academia since the war was so unpopular with the left.
The biggest repository of Vietnam source books, essays, graduate papers, etc. is in a collection at Texas Tech.
You should be able to surf their library site for some sources and then get them througn an inter-library loan. The NVA general’s memoirs are extremely enlightening about how they conned the left onto their side via propaganda and the truth about the Tet offensive. A must read source for any rebuttal.