ActionT4

Action T4 was the name used after World War II for Nazi Germany's Eugenics-based euthanasia program during which physicians killed thousands of people who were considered "incurably sick, by critical medical examination." The program officially ran from September 1939 until August 1941, but it continued unofficially until the end of the Nazi regime in 1945.

Book: T4: A Novel by Ann Clare LeZotte (c2008)