Nelson Mandela Memorial Service in Johannesburg

U.S. President Barack Obama speaks at the memorial service for former South African President and anti-apartheid leader Nelson Mandela, at FNB Stadium in Johannesburg, South Africa on December 10, 2013. Nearly 100 heads of state and roughly 100,000 mourners attended the service for Mandela who died last week at the age of 95. UPI/Jemal Countess