Source: Pamela Falk / CBS News After first lady Michelle Obama and her daughters Sasha and Malia met Nelson Mandela in Johannesburg, South Africa last month, the first family kicked off the U.S. commemoration ofNelson Mandela International Day, created by the U.N. two years ago to mark the democracy icon's birthday. "Madiba continues to be a beacon for the global community, and for all who work for democracy, justice and reconciliation," said Michelle Obama at the time, referring to Mandela [...]