Did the US abandon soldiers in the Vietnam War?

At the close of the Paris Peace Accords, the US and Vietnam agreed to return any POWs to their home country -- however, for decades after the close of the conflict, people in country reported seeing missing American soldiers, sometimes held by foreign officials, sometimes on their own in the jungle. So what happened to the hundreds of missing soldiers in the Vietnam War... and how much did the US government actually know about i99t?

They don't want you to read our book.: https://static.macmillan.com/static/fib/stuff-you-should-read/

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