The Nazis' persecution of the Jews during the Holocaust included the creation of prisoner hierarchies that forced victims to cooperate with their persecutors. Many in the camps and ghettos came to hold so-called "privileged" positions, and their behavior has often been judged as self-serving and harmful to fellow inmates.
In 2006 Dr Adrian Owen and his team made medical history. But now, through Dr Owen's pioneering techniques, we can talk to them - and they can talk back.
