United States Can Spy on Britons Despite Pact, N.S.A. Memo Says - NYTimes.com
▻http://www.nytimes.com/2013/11/21/us/united-states-can-spy-on-britons-despite-pact-nsa-memo-says.html?src=recg
“When sharing the planned targeting information with a Second Party would be contrary to U.S. interests, or when the Second Party declines a collaboration proposal, the proposed targeting must be presented to the Signals Intelligence Director for approval with justification for the criticality of the proposed collection,” the passage explains.
It goes on to say that if that spying is approved, the information it gleans “must be maintained in NOFORN channels” — i.e., never shared with the spied-upon country.
A footnote goes further, suggesting that if a Five Eyes citizen is outside of his or her own country, the limits are lifted. In that case, the memo says, “there may be no restrictions associated with that collection” outside of basic N.S.A. rules on avoiding spying on innocent Americans and similar guidelines.