The White House and congressional backers of the National Security Agency’s surveillance programme have warned that a move to end the massive collection of phone records from millions of Americans would put the U.S. at risk from another terrorist attack. White House press secretary Jay Carney issued an unusual, nighttime statement on the eve of a high-stakes showdown vote in the House of Representatives on Wednesday over a measure by Republican Justin Amash that would end the secret programme’s authority. Mr. Carney contended it would “hastily dismantle one of our intelligence community’s counterterrorism tools”. — AP