Special Report: World says goodbye to Nelson Mandela

Read MoreDignitaries and celebrities from around the globe and thousands of South Africans have gathered in Soweto for a massive memorial service honoring anti-apartheid icon and legendary humanitarian Nelson Mandela.Dignitaries and celebrities from around the globe and thousands of South Africans have gathered in Soweto for a massive memorial service honoring anti-apartheid icon and legendary humanitarian Nelson Mandela.