America has roughly 400 million guns in circulation. Our divisions - social, political and racial - and our fear of those differences fuel even more gun purchases. 2020 showed a historic rise in gun violence. Guns killed a record 45,000 people, the majority of them by suicide. In this episode of Us & Them we explore the foundations of the Second Amendment and the cultural and historical beliefs and myths that contribute to our very American divide over guns. Gun ownership is at record levels across the country with 40 percent of adults saying they have at least one firearm in their home. But what rights does the Second Amendment give us? And what happens if our collective arsenal intersects with our widespread distrust of our institutions, our government, and each other?