NSA

ACLU Sues To Block Suspicionless Phone Snooping

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WASHINGTON — The American Civil Liberties Union on Tuesday filed a lawsuit against the Obama administration over its "dragnet" collection of logs of domestic phone calls, contending that the once-secret program — whose existence was exposed by a former National Security Agency contractor last week — is illegal and asking a judge to both stop it and order the records purged.

The lawsuit, filed in New York, could set up an eventual Supreme Court test. It could also focus attention on this disclosure amid the larger heap of top secret surveillance matters that were disclosed by Edward J. Snowden, a former N.S.A. contractor who came forward on Sunday to say he was the source of a series of disclosures by The Guardian and The Washington Post.