Newly-accessed material from the United Nations shows that as early as December 1942, the United States, Britain and Soviet Union were aware that at least two million Jews had been murdered and another five million were at risk of being killed, but did very little to try and rescue or provide sanctuary to those in mortal danger, according to Dan Plesch, a professor at the Centre for International Studies and Diplomacy at SOAS University of London. The author of a new book called the Human Rights After Hitler, Plesch told Britain's Independent on Monday he had discovered documents dating from 1944, indicting German leader Adolph Hitler and other senior Nazi leaders of war crimes.