North Korea has launched more than a half-dozen missiles in the past few weeks. Many of them are new variants, which suggests that North Korea is continuing to march toward building nuclear weapons. At the same time, North Korea's leader Kim Jong Un has all but demanded the U.S. to return to negotiations. What's North Korea's objective? What will the U.S. likely do? Former U.S. Special Envoy Joe Detrani talks with Target USA about the options.