US releases more spying secrets
The Obama administration has given up more of its surveillance secrets, acknowledging that it was ordered to stop collecting thousands of internet communications from Americans with no connection to terrorism.
Officials said it was an unintended consequence when it gathered bundles of internet traffic connected to terror suspects.
One of the documents intelligence officials released came because a court ordered the National Security Agency to do so, but it is also part of the administration's response to leaks by analyst-turned-fugitive Edward Snowden, who revealed that National Security Agency spying programmes went further and gathered millions more communications than most Americans realised.
The NSA declassified three secret court opinions showing how it revealed to the court that one of its surveillance programmes might have collected and stored thousands of American emails.