No, I'm in the "bring me solid evidence" campYes but you are in the 'It's impossible, it's all nonsense and I'm not even going to entertain it' camp.
And yet:I'm somewhere in between. I think it's highly unlikely but not impossible, and there are, currently, unanswered questions.
You're the one advocating for a cover-up...Instead he's quick to deny, unprompted, that they're holding any captive. A bit like the Vietnamese government denying it was still holding American POW.