The National Security Agency is responsible for carrying out three of the country's most important intelligence activities - Signals Intelligence (SIGINT), Information Assurance (IA), and Domestic Surveillance (DS). We are the Domestic Surveillance Directorate. We work …

Where does the NSA keep surveillance data? - Quora In the late 1980s, I was called in on a project with impressive specifications. My client was a consulting firm in the Dallas area, who found me through Steve Wallach. Their client was E-Systems, a military and intelligence contractor in Garland. Phew, NSA Is Just Collecting Metadata. (You Should Still Yes, but a peculiarity of U.S. surveillance law gives call metadata less protection than call content. There are generally stricter requirements for wiretaps that intercept call content than for The NSA, Edward Snowden, and Surveillance

NSA programs involving the surveillance of non-U.S. persons outside of the United States under Section 702 of the FISA Amendments Act played a role in 4.4 percent of the terrorism cases we examined, and NSA surveillance under an unidentified authority played a role in 1.3 percent of the cases we examined.

How American Companies Enable NSA Surveillance – Foreign Oct 04, 2016 PRISM (surveillance program) - Wikipedia

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NSA uses supercomputers to crack Web encryption, files show Sep 05, 2013 NSA Surveillance Strategies to be Wary of May 24, 2019 NSA phone record collection does little to prevent