Olympic swimmer Cullen Jones learned to swim after nearly drowning as a child. Jones is on a mission to stop the incredible number of African-Americans, especially children, who are dying in the water. African-American children are nearly three times more likely to drown than other children, experts say. Tamron Hall's full report airs Thursday, July 26 at 10pm/9c on NBC's Rock Center with Brian Williams.
Don't miss "Rock Center" Thursdays at 10pm ET on NBC.