Tensions have risen on the Korean Peninsula. We’ll talk with Peter Hayes, executive director of the Nautilus Institute, about the military sniping between North and South Korea and the possible geopolitical effects. Also, Peace Action‘s Kevin Martin gives his views on the importance of renewing START and the current political rankling in the U.S. over the arms treaty. On Global Notes, Jerome and Radio M host Tony Sarabia preview Afrocubism, a long-awaited collaboration between Malian and Cuban musicians.