updated 8:03 PM EST, Tue December 10, 2013
Hannah Hetzer says Uruguay took a bold and smart step and became the first nation to make recreational marijuana legal for adults. Other nations should take heed.
Gospel singer Kirk Franklin, who preceded Obama on stage, writes that the real tribute is to so many who have fought for justice
Donna Brazile gives President Obama's speech at Nelson Mandela's memorial high marks. "Let us not doubt, even in the age of deep cynicism, the power of words can still stir the spirit."
Paul Begala says Obama's handshake with the Cuban leader sends out a ripple of hope from the right side of history.
Bono on Nelson Mandela
Bono told Anderson Cooper that Mandela "represents the fist turning into the handshake."
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