More than fifty years after the end of World War II, a new chapter of Holocaust history is unfolding. Evidence is emerging of the complicated financial transactions between the Nazis and the European countries and businesses that profited by the genocide.
People with IQ's of 80-90 are a little on the slow side but may be found in fast-food restaurants, day-care centers, etc. They may also be found in unskilled jobs. About 16% of the population has IQ's in this range.
However, people with smooth brains or lissencaphaly tend to get the lowest IQ's, which is around 20. Adaptive behavior ratings scales can go lower, but there's really no point, because once you get to IQ's that low, there's virtually no real difference in performance.