Homeland Security warns of potential domestic extremist-fueled violence related to Title 42

The Department of Homeland Security warned last week of potential extremist-fueled violence connected to the long-anticipated lifting of Title 42, just days before enforcement of the Trump-era policy was slated to end before the U.S. Supreme Court intervened, CBS News confirmed with multiple law enforcement sources. 

Intelligence officials "have observed calls for attacks targeting primarily migrants and critical infrastructure," according to a bulletin issued on Dec. 23 by the Department of Homeland Security's Office of Intelligence & Analysis, which cites social media discussion of "firearms attacks, the placement of land mines along migration routes, and luring migrants into trailers to poison them with gas."

The memo notes that planning by domestic violent extremists is often shielded by online security measures, limiting exposure by law enforcement.