thanks for the ping, whilst looking for the source of the bomb crater image, I found this - interesting in the light of current events:
http://www.ramsheadpress.com/Hitler/APP3.htm
[19] A few days before Hitler committed suicide he launched a German U-boat from Hamburg loaded with uranium and heavy water, which was to dock in Japan. Japan had been working on the Atomic bomb in conjunction with Hitler. Though this has been kept from the world’s eye, until Robert Wilcox published his book, Japan’s Secret War- Japan’s Race Against Time To Build Its Own Atomic Bomb, in 1995.
In this book Wilcox used secret FBI documents he obtained through The Freedom of Information Act to prove the claim of his title. Of course Truman was briefed on Japan’s progress and this was the real reason he hit Japan twice, until they surrendered. On the back cover of Wilcox’ book, the Washington Post commented, “Truman...must have been aware of Japan’s nuclear capability as he deliberated about using an American Atomic bomb.” The Washington Times commented, “...had Japan developed the bomb first, they would have used it ruthlessly.” Ibid.
There were also attempts to transport V2 rockets to the Japanese, for use with the Japanese nukes that never quite got built. There are those who think Heisenberg was on the wrong track with his bomb project, and I think the Germans were unable to accumulate enough kaboomium to make it work.