The head of the FISA court says it's hard to do his job when he has to take intelligence agencies at their word.
The U.S. makes more requests for data than other governments combined, according to Twitter's latest transparency report.
In an effort to temper concerns about NSA spying, the Director of National Intelligence will declassify documents about NSA surveillance operations.
Just a month after the attacks of Sept. 11, 2001, the NSA began compiling vast amounts of Americans' metadata—and it hasn't stopped since.
The saga of whistleblower Edward Snowden has moved with the velocity of a spy thriller. Here's everything you need to know about his controversial leaks.
Foreign Minister Sergey Lavrov announced Tuesday that he would not honor the U.S.'s urgent request for Russia to turn Snowden over to the U.S. or halt his travels.