The National Security Agency will be allowed to continue surveillance of domestic telephone communications, at least for now.
The Supreme Court rejected an appeal from a privacy rights group trying to put a stop to the practice.
The electronic privacy information center filed a petition, accusing a secret federal court of improperly authorizing the government to collect electronic phone records.
The organization did not comment on the Supreme Court decision.
Neither did the Justice Department, which was defending the government's interests.
The privacy rights group now has the option of going back to the lower courts and starting the legal process again.
Prior lawsuits against the NSA program have been unsuccessful.
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