In the 1950s and 1960s, the Army used motorized blowers atop a low-income housing high-rise, at schools and from the backs of station wagons to disperse a radioactive compound into the air of St. Louis. This was done in the poorest parts of the city. The material being sprayed was zinc cadmium sulfide.
The greatest concentration of spraying in St Louis was at the Pruit-Igoe public housing complex, which was home to 10,000 low-income residents, 70 percent of those residents were children under the age of 12.
Local officials were told at the time that the government was testing a smoke screen that could shield St. Louis from aerial observation in case the Russians attacked.
The spraying was part of a biological weapons program that the government acknowledged existed in 1994.
The idea that thousands of people were unwillingly exposed to harmful materials in order to determine their health effects is absolutely monstrous.