This became known after former NSA contractor leaked another portion of secret documents. According to a report, published by the Guardian and Channel 4 News there was an agreement to share intelligence on foreign countries but not to spy on each other’s citizens. Being held in a partnership with New Zealand and Canada and is known as the “five eyes” agreement. Established in late 40th, secret document revealed to a public in 2005. It ensured the rights of each member country’s citizens were protected from surveillance by the other alliance members.
The rules changed in 2007.
Another secret agreement with the UK government allowed NSA to collect a personal information of innocent citizens including emails, IP addresses, fax numbers that can be made available to other members of the US intelligence and military community.
The 2007 NSA memo, titled “Collection, Processing and Dissemination of Allied Communications”, affirms that NSA agents authorized to new directions:
“Are authorized to unmask UK contact identifiers resulting from incidental collection.”
“May utilize the UK contact identifiers in Sigint development contact chaining analysis.”
“May retain unminimized UK contact identifiers incidentally collected under this authority within content and metadata stores and provided to follow-on USSS (US Sigint System) applications.”
This statement explains that, “it may be advisable and allowable to target second party persons and second party communications systems unilaterally, when it is in the best interests of the US and necessary for US national security.” That automatically accessorizes third part’s personal data or “friend’s friend’s friends”.
So far, monitored individuals are not NSA targets and therefore not suspected of any wrongdoing.
An interactive calculator posted by The Guardian illustrates how these three degrees of separation can start with one primary target and lead to enormous networks of people.
For example, a typical social web user has 190 friends, which are more than 5 million people three hops away who are targets of surveillance interest. NSA’s so-called “pattern of life” or “contact chaining” analysis, allows the agency to look up a vast amount of users’ data.
Thus, a person doesn’t need to actually talk to terror suspects for his or her communications to be analyzed, newspaper says.
The agreement didn’t remove the need for a warrant before the NSA looked at the content of Briton’s communications, it added.
This passage is marked as “NOFORN”, which indicates “not even for British eyes.”It states that the Five-Eyes agreement “has evolved to include a common understanding that both governments will not target each other’s citizens/persons”.
Thus, the draft memo goes on, governments “reserved the right” to conduct intelligence operations against each other’s citizens “when it is in the best interests of each nation”.