The japs were pretty brutal.
And we were brutal right back to them until they unconditional surrendered.
Some lessons have to be learned over and over...
I remember being told once that the Japanese were experimenting on germ warfare against us by sending out floating balloons attached to vials containing nothing, but the flights were supposed to tell the Japanese how far of a range they could cover f they decided to send off a vial containing actual gersm or viruses.
Another reason that I am glad they nuked the Japanese instead of invading. An invasion would have triggered a germ or virus attack.
The emperor himself was learned in marine biology and was said to be fascinated by the subject of biological warfare.
They also plotted to attack America’s west coast with biological agents. Send infected fleas (in clay pots) into cities to spread disease via vermin.
http://www.amazon.com/s/ref=nb_sb_ss_i_1_5?url=search-alias%3Ddvd&field-keywords=philosophy+of+a+knife&sprefix=philo
Unit 731 also performed experimentation on a small number of westerners. It would have been the noose for them, but for one thing; the looming possibility of war in Korea.
The view was that Stalin-supplied forces there might use bio-warfare, for which the expertise in attack also neatly overlap with expertise in defense.
Suddenly the data from Unit 731 became huuuugely valuable.
So they were all spared —they were needed.
The Sasakawa Peace Foundation (he was a ship-building big-shot) was heeeeavily mobbed up with the bad bro’s from Unit 731 and the Yakuza.
He wanted a Nobel Peace Prize —the upper floor of his museum in Shinagawa features photos of him smiling with nearly every big-shot you can think of, of course including Jimmy Carter.