22nd October 1966: A mechanical digger goes to work clearing rubble from the crushed village school at Aberfan, South Wales, which was engulfed after a coal tip collapsed killing many children. (Photo by Central Press/Getty Images)
22nd October 1966: A mechanical digger goes to work clearing rubble from the crushed village school at Aberfan, South Wales, which was engulfed after a coal tip collapsed killing many children. (Photo by Central Press/Getty Images)