maury island incident
Arnold was only there because Ray Palmer sent him, so I doubt he was "in on" anything.
However, I'm not sure when Arnold's relationship with Palmer began. If it was anytime prior to June 24, 1947 (even so much as writing a letter to Amazing Stories), then you might be on to something.
Tout homme sensÃ©, tout homme de bien, doit avoir la secte chrÃ©tienne en horreur.