Late one July night in 2020, armed men, identified only by the word POLICE written across their uniforms, began snatching supporters of Black Lives Matter off the street in Portland, Oregon, and placing them in unmarked vans. These mysterious actions were not carried out by local law enforcement or even right-wing terrorists, but by the U.S. Border Patrol. Nobody Is Protected is the untold story of how, through a series of landmark but largely unknown decisions, the Supreme Court has dramatically curtailed the Fourth Amendment of the Constitution in service of policing borders.