According to William Binney, quoted here:
The National Security Agency’s collection of phone data from all of Verizon’s U.S. customers is just the “tip of the iceberg,” says a former NSA official who estimates the agency has data on as many as 20 trillion phone calls and emails by U.S. citizens. ...
Britain’s Guardian newspaper posted online late Wednesday a copy of the “Top Secret” FISA court order directing telecommunications giant Verizon to hand over “metadata” about every call made or received by all of its customers in the United States. Such metadata include the calling and receiving phone numbers, the time of day and length of the call, and the whereabouts of the two parties.
Mr. Binney noted the order’s serial number, which indicates it is the 80th issued by the FISA court so far this year. The court likely has approved similar orders for the other major U.S. telecom providers, he said, “and they have to be renewed every 90 days.”
