MinneapolisAround 120 Immigration and Customs Enforcement agents worked the Minnesota 15 case.
Defence attorneys say it is part of a nationwide US spying operation on immigration critics.
Discovery records show Homeland Security Investigations used Operation Keyhole, an undercover programme dating to 2008, against domestic dissenters.
Both sides have filed motions over discovery of the surveillance programme, whose full scope remains unknown.
How each outlet framed it
- Hacker News leans critical
- frames the surveillance as a revival of 1960s New Left counterinsurgency, with NSPM 7 as the legal authority behind Project Whipple Shield
Sources: Hacker News