A [Snowden document], shows that an American law firm was monitored while representing a foreign government in trade disputes with the United States.
[…] The agency is barred from sharing with prosecutors intercepted attorney-client communications involving someone under indictment in the United States, according to previously disclosed N.S.A. rules. But the agency may still use or share the information for intelligence purposes.
[…] Other documents obtained from Mr. Snowden reveal that the N.S.A. shares reports from its surveillance widely among civilian agencies. A 2004 N.S.A. document, for example, describes how the agency’s intelligence gathering was critical to the Agriculture Department in international trade negotiations.
[…] The Australians have obtained nearly 1.8 million encrypted master keys, which are used to protect private communications, from the Telkomsel mobile telephone network in Indonesia, and developed a way to decrypt almost all of them, according to a 2013 N.S.A. document.