What does it mean to be black in the United States today? The messages are mixed. An African-American has made it all the way to the White House, but in Barack Obama's America one in three of all young black males is likely to spend time in prison during the course of his life. Stephen Sackur speaks to Bryan Stevenson, a lawyer, rights advocate and founder of the Equal Justice Initiative. Why are America's race-based wounds so slow to heal?(Photo: Bryan Stevenson. Credit: Getty Images)