Here's a good article on how Coster-Mullen did and probably still does his research. https://www.newyorker.com/magazine/2008/12/15/atomic-john https://www.newy

Here's a good article on how Coster-Mullen did and probably still does his research. https://www.newyorker.com/magazine/2008/12/15/atomic-john https://www.newyorker.com/magazine/2008/12/15/atomic-john “The secret of the atomic bomb is how easy they are to make.” John Coster-Mullen