Evaluating the NSA's Telephony Metadata Program
Schneier on Security
AUGUST 12, 2019
The first concern was over high numbers: in both 2016 and 2017, the Foreign Intelligence Surveillance Court issued 40 orders for collection, but the NSA collected hundreds of millions of CDRs, and the agency provided little clarification for the high numbers. For a time, the new program seemed to be functioning well.
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