How should schools teach the Holocaust?

There's a small phrase in the national curriculum that says a lot about how Holocaust education is viewed at a policy level in England. The key stage 3 programme of study for history states that "pupils should be taught about challenges for Britain, Europe and the wider world 1901 to the present day", and then goes on to list events that department heads might choose to cover, "in addition to studying the Holocaust". With those words, the national curriculum sets the Holocaust apart from any other historical event. Unlike teaching about the Norman Conquest, the Black Death and even the First World War, teaching about the Holocaust is a statutory requirement - and has been since 1991.