South Africans have marked the 50th anniversary of the Sharpeville Massacre, a turning point in the nation's liberation struggle. Sixty-nine people died on 21 March 1960 when police gunned down unarmed people protesting against apartheid laws. The dead were honoured as part of Human Rights Day, with church services, the laying of wreaths, and a speech by Deputy President Kgalema Motlanthe. Critics