The Department of Homeland Security’s Inspector General has released a troubling new report detailing how federal agencies like Immigration and Customs Enforcement (ICE), Homeland Security Investigations (HSI), and the Secret Service have conducted surveillance using cell-site simulators (CSS) without proper authorization and in violation of the law. Cell-site simulators, also known as "Stingrays" or IMSI catchers, are devices that masquerade as legitimate cell-phone towers, tricking phones within a certain radius into connecting to the device rather than a tower. Mass surveillance of this kind is a massive violation of privacy and has elicited the concern of at least one U