As secret documents revealed by Edward Snownden, Brazil was the country most spied the USA. CIA and NSA agents rode an office based in Brasilia for the purpose of intercepting communications of Brazilian citizens. As an expert, I can say that the mounting a base of operations precisely in the federal capital of Brazil was not to collect data from citizens and ordinary Brazilians but to have access to all communications via cell phones, emails, etc. .. the Brazilian government itself. According to these documents, the agents occupying position diplomats from USA therefore could rely on diplomatic immunity if they were discovered.

According with the information contained in the various Pen Drives and Flash Drives Snownden provided by this office based would have worked until 2002 and was part of a network of 16 facilities dedicated to intercept satellite communications and terrestrial lines and working together with the National Security Agency of the United States (NSA) and the CIA. The agents had installed a whole apparatus including equipment to capture data communication lines beyond and softwares that are capable of obtaining information of any type of communication made via the internet, some of which are able to capture the screen that is being accessed by the targets.

These software are: PRISM, to access e-mail and chatting; Boundless Informant, which would determine who sent what to whom and when; X-Keyscore that would recognize texts messages, and Fairview, capable of monitoring large amounts of data.

A huge computational infrastructure assembled by NSA suggests that the capture and analysis of data are done in a scheme of big data,the data are voluminous, varied in nature and arrive at high speed. Are the three Vs featuring big data: volume, variety and velocity.

This infrastructure environment, the agent just  typing the name of a person, MAC Address (Media Access Control) address is a physical address associated with the interface of communication,that connects a device to the network. The MAC address is a "unique", and no two ports with the same numbering, and used for access control in computer networks. Their identification is recorded in hardware, ie the ROM board network equipment such as desktops, laptops, routers, smartphones, tablets, network printers, etc..,spend it all conversations being recorded and all e-mails and instant messages to pass to be intercepted. Then, the computers are in charge of analyzing this data.

The analysis of these data also relies on the fact that much of the information would be encrypted as financial transaction data, company information and even posts Personal often travels across the network encrypted to ensure privacy and security, therefore these analysis software also would count with a algorithm (cipher) to decrypt these INFORMATION for these tasks and has NSA computers increasingly pontentes and able to break any encryption in a matter of minutes or hours and 100% of the thus read information.

Asked by various countries, the U.S. government has admitted spying schemes but only for the purpose of combating terrorism. The computers would Bluffdale analyzing a large number of information in search of terrorists and predict future attacks.

Disregarding what the U.S. government spends as justification, since it is known that they go well beyond this, all this controversy is generating a movement led by Brazil that will question the fact that the USA to control the Internet and require the creation of standards governing its use.

Brazil, according to the reporter from The Guardian, unlike the USA state, Brazil besides having all your information collected also served as a bridge for research from other countries such as China, which possesses a security system capable of detecting most advanced possible intrusion attempts in their databases. Another issue that is being assessed is the extent to which the USA used information on trades made by companies and even by the Brazilian government, and thus can take advantage of business because they would know all the steps beforehand.

According to information from the Brazilian Government, the case is being investigated by the Federal Police who is assembling a dedicated team for the case.

The question remains: Does this team enough expertise capable of detecting and confirming all that the documents say? This only time will tell.