"The spectrum is a scarce national resource...it is absolutely a defense priority." Much of the spectrum has been auctioned off for commercial use, sparking a fierce debate on Capitol Hill: How can we balance spectrum use between commercial and national defense needs? While fast telecommunications is crucial to our economy, leaving spectrum space for military radar is also key for U.S. homeland security and intelligence. Tom Karako, director of the CSIS Missile Defense Project, joins the podcast to discuss the intersection of spectrum policy and defense and whether spectrum can be effectively shared between commercial and defense needs.