![PopTech Videos: PopCasts show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/031/431/small/poptech-videos-popcasts.jpg)
Summary: <p>Strategist and expert on national security affairs Tom Barnett takes command and focuses in on the role of the United States in a geopolitical world of “core” and “gap” states. As you were, soldier.</p>
Summary: <p>Strategist and expert on national security affairs Tom Barnett takes command and focuses in on the role of the United States in a geopolitical world of “core” and “gap” states. As you were, soldier.</p>