It's very possible that he was the only person in the world who could have done it. Venerable Father - Page 18 by Paul Breiter - 2004 - 184 pages Limited preview - About this book
...research at Columbia on uranium enrichment became the basis for the process developed at Oak Ridge...and he was the only person in the world who could have done it. That was proof enough for us. I have to give Carothers and the FBI credit for finding Grundel and getting...
It's very possible that he was the only person in the world who could have done it. 