ICE agents are using facial recognition, DNA collection, and location tracking against American citizens and lawful residents during immigration enforcement operations. NPR reporters document how protesters and legal observers in Minneapolis faced body slams, DNA swabs, home surveillance, and online subpoenas for exercising first amendment rights. ICE collected DNA samples from at least six people in Minnesota, Illinois, Oregon, and California who were lawfully protesting or observing federal immigration operations, with no clarity on where samples are stored or how they're used. Federal agents intimidated constitutional observers by photographing their faces and license plates, reciting their home addresses aloud, and leading them back to their residences—tactics designed to send a message of surveillance and control.