The thing is...that transcript covers the wrong German scientists. Heisenberg et al were not very far along.

Manfred VonArdenne, Kurt Diebner, etc were successful in refining uranium and potentially even tested a bomb. Ardenne was working under the German Postal service.

See the Zinser Affadavit from the National archives, the history of U234 (the submarine) Todd Riders "Forgotten Creators" and Ranier Karlsch's "Hitlers Bombe". Further, ask yourself why so many underground sites in Germany were quietly blocked off/destroyed by the government- and continue to be. Jonastaal is a great example.

At one point the third Reich had at least 6 parallel nuclear programs. There is alot of history out there that isnt taught.