There is ZERO chance that Hagmann has anything new (or real) about that tape. No chance. Second, he is really boring on radio so I'd skip it anyway.
I hope you're not one of his subscribers. His site is bad news, in my opinion.
On the other hand, one of these days he might get something right by accident.
What if tonight is one of "these days"? Maybe it's better to listen and discern rather than assume.