I Know That To See How Effective Biological Weapons Are They Have To Be Tried,

but not on your own unsuspecting population surely!

but it happened, the tests began in 1949 when bacteria were released in the Pentagon's ventilation system, well at least the military tried it out on themselves first! this program moved to US cities in 1950, and over the next 20 years, the US military carried out 239 experiments in 66 cities in the US and Canada, thankfully the people involved in the tests used common strains of bacteria that they considered benign (Serratia marcescens, Bacillus globigii, Bacillus subtilis, and Aspergillus fumigatus), plus chemicals used as tracers, also thought to be benign, like fluorescent zinc cadmium sulphide, but here is the thing, some bacteria were not quite as begin as at first thought, Serratia marcescens and Bacillus globigii in particular can cause serious infections, a bacterial spray in San Francisco in 1950 led to eleven people being hospitalized and one man died, it was also later determined that zinc cadmium sulphide is a carcinogen, the public was never informed of these experiments, for the full amazing story have a look here, thankfully today governments would not condone giving people injections trying out new biological weapons, or would they? cue Psycho music!