
Activists in several U.S. cities are forming watch groups to monitor immigration enforcement, coordinating warnings and documentation efforts as Homeland Security expands operations, according to a new report.
In Los Angeles, Chicago and Charlotte, residents have used whistles and car horns to alert neighborhoods when they say immigration agents are in the area. Community groups have also organized street patrols and recorded videos of masked officers in unmarked vehicles making arrests. Trainers instruct volunteers to observe from a distance, note the number of agents present and their activities, and record any interaction.