We discuss what the evidence suggests about heroin-assisted treatment and supervised consumption sites; steps to reduce the risk of political violence in America; how to create summer learning programs that can help close the gap between low-income and non-white students and their more-affluent and white peers; why the U.S. immigration system is getting overwhelmed; obstacles facing Japanese forces in their bid to match China's air power; and how Gulf Coast communities can recover from a pair of overlapping environmental disasters. For more information on this week’s episode, visit rand.org/podcast.