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The Boston Globe

Nation

Court’s classified rulings expanded powers of NSA

FISA has evolved into a parallel of US high court

WASHINGTON — In more than a dozen classified rulings, the nation’s surveillance court has created a secret body of law giving the National Security Agency the power to amass vast collections of data on Americans while pursuing not only terrorism suspects, but also people possibly involved in nuclear proliferation, espionage, and cyber attacks, officials say.

The rulings, some nearly 100 pages long, reveal the expanded role of a court that regularly assesses broad constitutional questions and establishes important precedents, almost always without public scrutiny, according to current and former officials familiar with the court’s classified decisions.

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