https://www.techdirt.com/articles/20191003/13484443117/working-with-private-sector-hundreds-law-enforcement-agencies-ice-has-assembled-massive-surveillance-network.shtml

The New York Times has published a lengthy report on ICE's surveillance network it uses to hunt down undocumented immigrants all over the country. The report is based on the results of public records requests, which show ICE's ability to utilize social media networks, dozens of law enforcement databases, and a bunch of private sector options to find the people they're looking for.

This public records investigation mainly focuses on ICE's operations in the Pacific Northwest. The documentation used to compile it includes recordings of phone calls to local law enforcement agencies and interviews with detainees. Together, the hundreds of documents show ICE's breathtaking reach.