The Electronic Frontier Foundation, an advocacy group for Internet users, is expected to argue in court on Tuesday that it's unconstitutional to prevent Americans from suing the telecom companies that allegedly helped the federal government unlawfully spy on them.
The FISA Amendments Act (FAA) gives telecommunications companies retroactive immunity for opening their networks to the National Security Agency. The telecoms can walk away from lawsuits as long as the government claims the request was "lawful" and authorized by the president. Before the law was passed, EFF had brought a lawsuit against AT&T that is before the 9th U.S. Circuit Court of Appeals in San Francisco.