They have joined Google and Microsoft in taking a stand against secret snooping.
The new suits, which join an amended Google transparency petition, see both Facebook and Yahoo voicing concerns about their inability to give any greater detail on what user information is disclosed in the name of national security than the raw overall numbers.
Facebook posted an official statement on its website Monday, saying it is necessary to disclose directives under the Foreign Intelligence Surveillance Act to make the process transparent.
According to the Express Tribune, the Facebook statement further states that actions and statements of the U.S. Government have not adequately addressed public concerns globally about whether their information is safe and secure with Internet-dominant firms.
The U.S. administration has earlier tried to defend its surveillance programmes in the wake of public information disclosed by National Security Agency (NSA) leaker Edward Snowden.
PRISM and other programmes by the NSA to capture and store personal information collected from emails, phone calls and web searches have sparked outrage in Europe, the report added.
--ANI (Posted on 10-09-2013)