How Japan's World War II race to build an atomic bomb fathered North Korea's nuclear threat. This revised and greatly updated third edition of Japan's Secret War is a groundbreaking, thoroughly sourced investigation into one of the least-known, yet highly significant episodes of World War II: Japan's frantic race to develop its own atomic bomb. We'll discover how that effort then evolved into North Korea's nuclear program and the looming threat it presents to mankind.   Japan's WWII development of a nuclear program is not universally known. After decades of research into national intelligence archives both in the US and abroad, Robert Wilcox builds on his earlier accounts and provides the most detailed account available of the creation of Japan's version of our own Manhattan Project--from the project's inception before America's entry into WWII, to the possible detonation of a nuclear device in 1945 in present-day North Korea. Wilcox weaves a fascinating portrait of the secret giant industrial complex in northern Korea where Japan's atomic research and testing culminated. And it is there that North Korea, following the Japanese defeat, salvaged what remained of the complex and fashioned its own nuclear program. This program puts not only Japan, but also its allies, including the US, in jeopardy.