Earlier this year, tensions between federal officials and anti-government militia occupying a federal wildlife refuge in Oregon came to a somewhat violent end. Federal agents shot one of the protesters, while the rest surrendered to the FBI. It’s hardly the first time in our history that American citizens have staged armed protests. In this episode of BackStory, the Guys will consider different groups who have taken up arms - from Revolutionary War veterans protesting taxes, to the birth of the Ku Klux Klan and violent labor protests in the 20th century.