How a digital dragnet is powering Trump’s immigration crackdown

The Trump administration’s immigration crackdown in Minneapolis is providing insights into the surveillance technologies the government is using in its mass deportation campaign. Department of Homeland Security officials insist their immigration enforcement operations are “highly targeted.” But some American citizens have been caught up in the raids as the Trump administration has built new surveillance tools and fused together datasets on citizens and noncitizens alike. Over the last year, the agency’s expanding digital dragnet has empowered federal agents to collect and analyze vast volumes of information. The Department of Homeland Security says it will not disclose law enforcement-sensitive methods.