The Department of Defense has less than six weeks to submit a plan for how it will build and launch the “Iron Dome for America”, President Donald Trump’s concept of a mostly space-based missile defense shield. The DOD is reaching out to industry for ideas, but what should the technology priorities be? Laura Winter speaks with Roger Lenard, a NASA and DOD consultant, and a Strategic Defense Initiative veteran, who led the classified Timber Wind Nuclear Rocket program, and the Lightweight Exoatmospheric Projectile (LEAP) program; and Peter Garretson, a Senior Fellow at the American Foreign Policy Council, and co-Author of the book “The Next Space Race: A Blueprint for American Primacy”.