UC Santa Barbara students attend a candlelight vigil following Friday's series of drive-by shootings that left 7 people dead in the Isla Vista section of Santa Barbara May 24, 2014.
Britain said eavesdropping by its GCHQ security agency was legal and no threat to privacy but would not confirm or deny reports it received data from a clandestine US intelligence program.
India Tuesday voiced concern over the reported US spying on internet data of Indian citizens.
An ex-CIA employee revealed on Sunday it was he who leaked details of a top secret US surveillance program.
A US intelligence agency formally requested a criminal probe on Saturday into the leak of highly classified information about secret surveillance programs.
The classified phone and internet surveillance programs, which sparked controversy in the recent week, have prevented dozens of terrorist plots.
Actors greet conventioneers as they visit the Total War: Rome II video game booth during E3 in Los Angeles, California June 12, 2013.
Activists demonstrate during an event before delivering 100,000 petition signatures to US Senators, demanding investigation, disclosure, and action against dragnet spying, on Capitol Hill in Washington DC, capital of the United States, June 12, 2013.
US federal government recorded a budget deficit of $138.7 billion in May, US Treasury Department figures revealed Wednesday.
The man who told the world about the U.S. government's gigantic data grab also talks a lot about himself.
Edward Snowden, a US surveillance programmes leaker believed to be in Hong Kong, is technically free to leave the city at any time, local lawyers said on Wednesday, and one suggested he probably should.
The American Civil Liberties Union sued senior US government officials on Tuesday to strike down the National Security Agency's telephone surveillance.
Three of the largest US Internet companies called on the US government to provide greater transparency on national security requests on Tuesday.