The Washington Post obtained The Classified Slides of the NSA, which details the mode of collecting information..
But the modes described are yet to be addressed..
One is PRISM, the NSA program that collects information from technology companies, which was first revealed in reports by the Post and Britain’s Guardian newspaper last month. The slide also shows a separate category labeled “Upstream,” described as accessing “communications on fiber cables and infrastructure as data flows past.”..
The interaction between Upstream and PRISM — which could be considered “downstream” collection because the data are already processed by tech companies — is not entirely clear from the slide. In addition, its description of PRISM as “collection directly from the servers” of technology giants such as Google, Microsoft and Facebook has been disputed by many of the companies involved. (They say access to user data is legal and limited.)
However PRISM works, the NSA slide makes clear that the two collection methods operate in parallel, instructing analysts that “You Should Use Both.” Arrows point to both “Upstream” and “PRISM.”
A Brazilian newspaper on Tuesday published an article it said is based on documents provided by the former American contractor Edward Snowden asserting that the United States has been collecting data on telephone calls and e-mails from several countries in Latin America, including important allies such as Brazil, Colombia and Mexico.
The paper, O Globo, based in Rio de Janeiro, says the documents show the National Security Agency amassed military and security data on countries such as Venezuela, an American adversary that has been accused of aiding Colombia’s Marxist rebels and maintaining close ties with Iran. But the documents also show that the agency carried out surveillance operations to unearth inside commercial information on the oil industry in Venezuela and the energy sector in Mexico, which is under state control and essentially closed to foreign investment.