Radiation experiments in various US universities (Vanderbilt University gave over 800 pregnant mothers 'vitamin drinks' which turned out to be radioactive chemicals that led to some miscarrying their babies, developing radiation sickness and cancer) and schools (Walter E. Fernald State School injected radioactive chemicals in disabled children, fed children radioactive oatmeal funded by the US Atomic Energy commission and the Quaker Oats company, collected their spinal fluid for analysis). These are just two, but there were many more like these.