DNA Exoneration Feature Tonight on CNN

Tonight on CNN's Anderson Cooper 360 @ 10pm there's going to be a segment on James Waller, who was exonerated by DNA evidence and freed after spending 10 years in prison (he is one of the Dallas men referred to in Prof. Garrett's previous post). The promos for the segment promise it will "investigate why DNA evidence isn't more widely used" and Barry Scheck from the Innocence Project was interviewed for the story.