Ellen Nakashima reports:
The FBI conducts a “substantial” number of warrantless queries for Americans’ e-mails and phone calls in a special database of intercepted communications, but it does not track exactly how often, an intelligence official said in a letter released Monday.
The letter to Sen. Ron Wyden (D-Ore.) also reported that the NSA last year used 198 e-mail addresses or phone numbers of Americans to search the data for communications that might yield foreign intelligence — a low enough number, Wyden said, that the agency should be able to get a warrant for each one.
Read more on The Washington Post.