This is likely an undercount. The full scope is hard to pin down because these subpoenas typically only come to light when a user is given notice and challenges them in court, or when a company docume...

Numerous federal agencies possess statutory authority to obtain sensitive data without advance judicial approval or probable cause of illegal activity.

Numerous federal agencies possess statutory authority to obtain sensitive data without advance judicial approval or probable cause of illegal activity.

DHS allegedly went undercover at community meetings, subpoenaed the financial records of labor unions, and created dossiers on people at a church gathering, according to court filings.

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A critique of the Speaker's most recent legislative proposal to reauthorize Section 702 of the Foreign Intelligence Surveillance Act (FISA).

For too long, this law has allowed the government to evade privacy protections and spy on Americans. Reform is overdue.

Court held in Learning Resources v. Trump that the president exceeded his authority under the International Economic Emergency Powers Act.

Experts detail targeted reforms and legislative pathways Congress could enact to improve ICE and CBP accountability.

A leaked ICE memo authorizes warrantless home raids, defying DHS policy and raising grave Fourth Amendment concerns.

1989’s U.S. military action in Panama offers no constitutional cover for Trump’s Venezuela attack.

The Supreme Court must now recognize how excessive judicial deference to the president can endanger Americans’ fundamental liberties.

​Section 702 of the Foreign Intelligence Surveillance Act is an authority enacted by Congress to allow U.S. intelligence agencies to surveil foreign spies and terrorists. But it has been used in...

U.S. District Judge Charles Breyer ruled in favor of California Gov. Gavin Newsom in his challenge to President Trump's deployment of troops to Los Angeles.

A federal appeals court has ruled President Donald Trump illegally used emergency powers to impose sweeping tariffs but left them in place for now. The U.S.

It’s increasingly collecting and using social media information to make high-stakes decisions related to immigration.

A Customs and Border Protection “Industry Day” deck also asks for drones, seismic sensors, and tech that can see through walls.

On May 12, 2025, the Brennan Center for Justice filed an amicus brief in Emily Ley Paper et al., v. Trump, opposing the government's motion to transfer the case to the United States Court of Internati...

The administration is trying to evade limits on domestic use of the armed forces.

Donald Trump has essentially turned the border into a military base in order to be allowed to use the armed forces to make arrests, including of any Americans in the vicinity. Elizabeth Goitein, senio...