NYT reports that the TSA is giving ICE a list of every person who's to be taking a domestic flight inside the US so ICE can run it through their database looking for targets.
I'm not a lawyer, but I feel like the 4th Amendment has something to say about this.
https://www.nytimes.com/2025/12/12/us/politics/immigration-tsa-passenger-data.html?unlocked_article_code=1.8E8.lG_B.SvLF8g3CXiKG&smid=bs-share

T.S.A. Is Providing Air Passenger Data to Immigration Agents for Deportation Effort
The Transportation Security Administration is providing passenger lists to Immigration and Customs Enforcement to identify and detain travelers subject to deportation orders.
The New York Times