CNN CNN Newsroom June 29, 2013 19:08:00
Fredricka? >> all right r, thanks so much. martin savage in sanford. straight ahead, a voice we have not heard from in this tragedy. we'll play cnn's exclusive interview with trayvon martin's stepmother. president obama is in south africa today. he called on mandela's family, but he did not visit mandela for what he called peace of comfort. the president spoke about mr. mandela today when he was at a youth rally group. what did he say exactly? >> hi, fredricka. the president has spoken about former president mandela almost every time he has appeared publicly during this trip. at the youth ...