Former NSA whistle-blower Edward Snowden revealed the massive US global surveillance program.
Former intelligence contractor Edward Snowden began downloading documents describing the US government's electronic spying programs while he was working for Dell Inc in April 2012, almost a year earlier than previously reported.
US President Barack Obama on Friday pledged measures to strengthen oversight and transparency of the National Security Agency (NSA)'s classified surveillance programs following two months of controversies.
Syria, arms control and missile defense headline what are expected to be chilly talks between US and Russian officials, a sit-down tainted by the case of US National Security Agency leaker Edward Snowden.
The US House of Representatives narrowly approved continuing the National Security Agency's secret collection of hundreds of millions of citizens' phone records after a fierce debate.
US President Barack Obama raised US concerns directly with Russian President Vladimir Putin on former US spy agency contractor Edward Snowden, but there was no sign of a breakthrough.
The US Ambassador to Brazil, Thomas Shannon, Monday rejected Brazil's accusation that the US government has been spying on Brazilians citizens and companies over the past years.
Americans are still more likely to view Edward Snowden as a "patriot" than a "traitor," but public support for the former US spy agency contractor.
The United States said on Saturday it wants Hong Kong to extradite Edward Snowden and urged it to act quickly.
Visiting US President Barack Obama defended the country's internet surveillance programs on Wednesday, saying that lives have been saved and threats averted thanks to the monitored information.
Information gleaned from two controversial data-collection programs run by the National Security Agency thwarted potential terrorist plots in the US and more than 20 other countries.
Several Internet companies have struck an agreement with the US government to release limited information about the number of surveillance requests they receive. Facebook: 9,000-10,000; Microsoft: 6,000 'Yes we can' to 'Yes we scan'
The FBI Director Robert Mueller Thursday defended the classified phone and internet surveillance programs and vowed to hold the leaker responsible for the disclosure. US should 'explain hacking activity' Special: US surveillance program exposed