"Painstakingly, the germ-development program at Fort Detrick had tested prospective germ weapons on nearly a thousand American soldiers, in sealed chambers and the wilds of the Utah desert. Reaching beyond the military, it had exposed prisoners at the Ohio State Penitentiary, where volunteers were carefully monitored. Clandestinely, it also sprayed American cities with mild germs to investigate the likely impact of deadly pathogens."
January 1, 1970
https://en.wikiquote.org/wiki/Fort_Detrick