Obama lauds Tutu

US President Barack Obama has praised Archbishop Emeritus Desmond Tutu upon the occasion of his retirement, describing him as a "moral titan". Thursday is Tutu's 79th birthday, and the beginning of his official retirement. Tutu is celebrating this new phase of his life by embarking on a round-the-world cruise with his wife. We wonder if he'll be stopping in the US and popping by the White House to have a chat with one of his most powerful admirers? Read more: AP