As BBC2 commemorates the 50th anniversary of the liberation of Auschwitz, this chilling documentary offers a salutary reminder that the lessons of the Holocaust can easily be ignored, forgotten or even denied. Film-makers gained access to a convention of far-right groups in the American Midwest where they uncovered a nest of unrepentant racists. Their film provides an alarming portrait of modern-day bigotry.
(See also The World at War: Genocide Wednesday 25 January)