Earlier quoted context omitted.
Yeah, the idea that he was involved in the American war in Vietnam seems far-fetched. Perhaps this is a confusion with some other, older Stoltenberg?
Yes. Hersh possibly confused Jens with his father Thorvald Stoltenberg. Who travelled to North-Vietnam in 1970 to negotiate between them and USA, and who was commended for his negotiating skills by the am. intel community in a declassified rapport from 1980. See my other comment for quotes and sources.
HN favorite Mark Ames has another theory about Stoltenberg fils that wouldn't contradict TFA: perhaps even his teenage war protest was of the "observe then snitch" variety?
https://twitter.com/MarkAmesExiled/status/162420098079862374...