Shannon Bugos at the Arms Control Association is co-author of a new report called “The Allure and Risks of Hypersonic Weapons.” She goes in depth with Michelle Dover on the state of development for hypersonic missiles around the world and what we can do to reduce these threats. On Early Warning: Colleen Moore of Women Cross DMZ discusses North Korea’s recent missile tests, prospects for US-North Korean talks and what the renewed travel ban means for families.