This section of Discover The Networks examines groups that refer to themselves as the “legal left” and claim to promote civil liberties, but whose focus, in practice, is on defending fellow radicals, including terrorists, whose political agendas reflect or advance their own. An ancillary objective is to weaken America’s security institutions in their efforts to combat domestic criminals and international enemies. Radicals justify these agendas through an ideological framework that casts the United States government as an “oppressive” regime at home and an imperialist intruder overseas.