National Security Agency

To keep its code-breaking prowess, the National Security Agency must recruit scores of the brightest students in math and computer science each year. The Snowden revelations are hurting those efforts.

A law professor and expert on national security law sheds some light on the lawsuit by Wikipedia's parent company against the National Security Agency.

Newly released court documents reveal details of a battle between Yahoo and the Obama administration. The government pressured Yahoo to disclose some users' data for a secret NSA surveillance program.

So the world's most clandestine spy agency is working on something called a quantum computer. It's based on rules Einstein himself described as "spooky," and it can crack almost any code. That's got to be top-secret stuff, right? Guess again.

Google and five other tech companies sent a letter to the Senate Judiciary Committee supporting legislation to reform NSA surveillance programs.

Law enforcement agencies across the country subpoena cellphone location data regularly. But civil liberties groups hope a series of state-level legal victories will usher in stronger protections for that often-revealing digital information.

Even as it continues to grapple with concerns about its data-gathering operations, the National Security Agency is poised to open a massive facility where cellphone, text message, email and landline data can be stored and analyzed.