It’s midmorning in Wheaton, 25 miles west of downtown Chicago.
Cristóbal Cavazos gets a call from a People’s Patrol volunteer at an industrial park near O’Hare International Airport where thousands of undocumented immigrants work in warehouses and manufacturing and food-processing plants.
The volunteer tells Cavazos she’s watching agents who might be from U.S. Immigration and Customs Enforcement, the agency known as ICE…