The USA Freedom Act, blocked by the Senate, would have curbed powers granted under the Patriot Act, including bulk collection of Americans' phone records.
The former head of the CIA has said "we kill people based on metadata", but as Australia introduces new data retention laws, the country's security chief says he's "not quite sure" what the fuss is about. So what is the truth behind data retention, and why does it matter?
We're trained to think microbes are bad. But researchers are gathering this week to discuss uses of massive ecosystems of the micro-organisms, many of which are beneficial.
A UK diplomat's son is arrested after a delivery driver asks him to sign a package thought to have been bought on the Web. It allegedly contained a deadly toxin called Abrin.
In his speech on recommended changes to the NSA, the president's rhetoric is in the right place. But are his efforts at reform?
Secret program involving counter-terrorism collects and stores data on cross-border money transfers handled by firms like Western Union, according to reports. Some Americans' data is swept up.
The scandal surrounding the US National Security Agency is no laughing matter, of course. But it's hard not to look for telling lines in the agency's new job listing.
The Obama administration calls the NSA's practice of gathering phone records "a critical tool in protecting the nation from terrorist threats," reports the AP and Reuters.
Army soldier admits to being WikiLeaks' source for confidential government files and says he hoped leak "might cause society to reconsider" the U.S. government's antiterrorism efforts.
The countries had been trading counter-terrorism information, but a data analyst allegedly stole it and tried to sell it to commercial buyers and foreign officials, according to a report.