15 Minutes is an interview podcast with the biggest names in the global security space. As the 23rd Secretary of the Air Force under President Obama, one of Deborah Lee James' principal concerns was U.S. advancement un space. She believes it's mission-critical for the United States to better protect its satellite communication and missile warning systems. The Cipher Brief's Fritz Lodge joined Secretary James for a discussion on the role of U.S. armed forces in space - and some of the game-changing advancements that may come soon in space-based missile defense.