The US Congress has voted to temporarily extend an expiring law that governs how intelligence agencies can gather information from US telecoms companies. While the Foreign Intelligence Surveillance Act (Fisa) went decades without controversy, the 1978 law in recent years has angered lawmakers of both parties over how it handles digital communications. A part of the law known as Section 702 gives the National Security Agency (NSA) authority to ​spy on foreigners using data drawn from US digital