SDI, obviously. Did you click the link? My innuendo is thinner than rice paper, it's a joke to prod you into clicking that link. Michael Griffin's entire ca

SDI, obviously. Did you click the link? My innuendo is thinner than rice paper, it's a joke to prod you into clicking that link. Michael Griffin's entire career revolves around kinetic interceptor based SDI, e.g. Brilliant Pebbles. The only way to build such a system is to develop rocket boosters that let you launch tens of thousands of satellites, which is what SpaceX has been working towards the entire time.