Auschwitz anniversary: Survivor's emotional appeal at ceremony

Auschwitz survivors have been speaking at a ceremony to mark the 70th anniversary since the liberation of the Nazi death camp.

Roman Kent, born in 1929, shed tears as he appealed to the world: "We do not want our past to be our children's future."

Some 1.1 million people, mostly Jews, were murdered between 1940 and 1945 at the site in southern Poland.