A contentious debate is unfolding in Eugene and Springfield, Oregon, over the use of Flock automated license plate readers (ALPRs). While the Eugene Police Department credits the technology with being instrumental in dozens of arrests and vehicle recoveries, a growing chorus of opposition is raising significant civil liberties concerns. At a recent city council meeting, three dozen speakers voiced their opposition, and the ACLU of Oregon has called for a halt to the program, citing potential violations of state law and constitutional protections. A primary concern is the potential for data to be shared with federal agencies for purposes like immigration enforcement. The technology was adopted by police in both cities without prior public approval, prompting elected officials to now commit to further study of the issue as community organizers work to raise public awareness.