There is genuine concern by many about Senator McCain's votes, lobbying, and other actions re "MI-'POW" issues.
One example....because of McCain's efforts "De-Brief Transcripts" of returning POW's were kept in a "classified" status such that even the very POW's themselves were unable to view the transcript of their own De-Brief.
I know for a fact....a US SpecOps unit was deployed to a SE Asia location during the mid-1980's in preparation for a Cross Border operation designed to locate/return long held POW's.
The Mission was cancelled for un-explained reasons.
Whether there were POW's being held post 1973 is subject to debate....but the fact there was at least one Mission mounted to seek out some reported POW's by itself is demonstrative of the credibility of some information coming from Vietnam, Cambodia, Laos, and China.
Do your research and decide for yourself what the evaluation of McCain's actions in the Senate re missing POW's should be.....it is a very interesting topic once you begin to consider all the factors that surround it.
https://www.thenation.com/article/wh...ked-info-mias/