Produced in association with ProPublica, the timely new one-hour documentary "American Insurrection" probes the groups and their leaders who are responsible for recent acts of threats and violence on American soil, including the Jan. 6 attack on the U.S. Capitol building in Washington, D.C. The film explores how a number of extremist groups felt emboldened and encouraged by former President Donald Trump, and the process through which several individuals became radicalized and absorbed into that extremist political landscape.