“Shiro Ishii, the physician who had conceived and run Unit 731, was extensively debriefed and then allowed to return to civilian life. The existence of Unit 731 was a well-guarded secret, by Japanese and American officials alike, and would have remained unknown to the wider world forever except that in 1984 a student from Keio University in Tokyo came across a box of incriminating documents in a secondhand bookshop and brought them to the attention of others. By this time, it was far too late tobring to justice Shiro Ishii. He had died in 1959, peacefully in his sleep, at the age of sixty-seven after nearly a decade and a half of untroubled postwar life. Bryson, Bill. The Body (p. 198). Knopf Doubleday Publishing Group. Kindle Edition. Bryson, Bill. The Body (pp. 197-198). Knopf Doubleday Publishing Group. Kindle Edition. ”
