What is the Golden Dome defence system Trump announced?

Will a Golden Dome protect America? It's an ambitious and unprecedented defence project that president Donald Trump says will shield the country from advanced missile threats, including those launched from space. But could it also trigger a new global arms race? In this episode:  Micheal O'Hanlon, Senior Fellow, Brookings Institution. Youngshik Bong, Research Fellow, Yonsei University Institute for North Korean Studies. Zaid Belbagi, Post-Doctoral Researcher, King's College London. Host: Elizabeth Puranam Connect with us:@AJEPodcasts on Twitter, Instagram, Facebook