Japanese biological warfare Unit 731 bred bubonic plague fleas in Singapore during World War II, killed thousands by airdropping them in China: Researcher finds. • r/worldnews

Japanese biological warfare Unit 731 bred bubonic plague fleas in Singapore during World War II, killed thousands by airdropping them in China: Researcher finds. (straitstimes.com) via Pocket http://ift.tt/2AALp4X