The BBC's Tom Burridge takes the temperature of Spaniards in Madrid over allegations of NSA call-monitoring.

If you're a former high ranking intelligence official giving an anonymous interview bashing the Obama administration on a train, make sure no one with a Twitter account is in earshot.

At a meeting in Brussels, European leaders are discussing possible retaliations, including suspending the transfer of bank data and withdrawal of negotiations over free trade.

The new revelation is part of Edward Snowden's latest leak.

Electrical surges at a National Security Agency hub has delayed the center’s opening for over a year.

According to the latest document leak from Edward Snowden.

Worried about NSA surveillance? One option is to operate on an entirely separate network.

New information about NSA surveillance activity emerges. Even encrypted data is vulnerable to its data mining.

More NSA revelations means even more concern about online privacy.

Will the revelation that data encryption isn’t as secure as thought change the way businesses operate?