The NAACP is pressing the Justice Department to file federal criminal charges in the shooting death of Florida teenager Trayvon Martin. Over the weekend, the man who shot and killed Martin, George Zimmerman, was acquitted of all charges. The victim was African American and the accused is Hispanic. From the start, prosecutors had a difficult case to make. Details related to the circumstances that lead to the shooting were hard to establish. The not guilty verdict has renewed debate over justice and race. A panel joins Diane to discuss what happens next with this case.