: Feeling a philanthropical compulsion to contest in the Iraq War, to help free troubled people, Snowden recruited in the United States Army Reserve on May 7, 2004, as a Special Forces candidate .He did not complete the training due to fracture in tibia. After receiving administrative discharge from US Army, where he was getting training to join Special Forces, Snowden’s luck pushed him to join Central Intelligence Agency. He didn’t do well in the interview but Deputy Director Corbin O'Brian decided to take a chance on him. He was sent to “The Hill” where he learnt and then was tested on cyberwarfare. Snowden got his first post abroad working with diplomatic cover in Geneva in 2007 where he came to know that his assignment was ethically wrong. When his superiors used his network to set up their target on “Driving under the Influence” charge to get useful information from them, In February 2009 Snowden resigned from the CIA.
Snowden then moved to Japan where he joined NSA began work as a contractee for Dell. Snowden tutored top officials and military officers on how to guard their networks from Chinese hackers. During his four years with Dell, he rose from administering NSA computer system upgrades to working as what his resume termed a "cyberstrategist" and an "expert in cyber counterintelligence" at several U.S. locations. In 2011, he returned to Maryland, where he spent a year as lead technologist on Dell's CIA account. In that capacity, he was accessed by the chiefs of the CIA's technical branches, including the agency's Chief information officer and its chief Technology Officer.
In March 2012, Dell reassigned Snowden to Hawaii as lead technologist for the NSA's information-sharing office. He designed "Epic Shelter" a programme that would allow the US government to back up all critical data from the Middle East in an emergency. He found out that the practices, NSA and US Agencies were using in ally country, were meant to shut down all those country in the case of retaliation. He found that job very stressful as well as it was against his ethical values.
On March 15, 2013, three days after what he later called his "breaking point" of "seeing the Director of National Intelligence, James Clapper unswervingly lie under pledge to Congress", Snowden quit his job at Dell. Although he has stated that his career high annual salary was $200,000, Snowden said he took a pay cut to work at Booz Allen, where he sought employment in order to gather data and then release details of the NSA's worldwide surveillance activity.
According to a Reuters story by Mark Hosenball, “while in Hawaii, Snowden may have misled 20–25 co-workers into giving him their logins and passwords under false pretenses. NBC news later reported that the NSA sent a memo to Congress signifying that Snowden had tricked a fellow employee into sharing his personal public key infrastructure certificate to gain superior admittance to the NSA's computer system.
“U.S. officials and other sources familiar with the investigation said Snowden began downloading documents describing the government's electronic spying programs while working for Dell in April 2012. Investigators estimated that of the 50,000 to 200,000 documents Snowden gave to Greenwald and Poitras, most were copied by Snowden while working at Dell.”
On June 21, 2013, the U.S Department of justice unsealed charges against Snowden of two counts of violating the Espionage Act of 1917 and theft of government property. Two days later, he flew into Moscow's Sheremetyevo Airport, but Russian authorities noted that his U.S. passport had been annulled and he was restricted to the airport terminal for over one month. Russia ultimately granted him right of asylum for one year, and repeated extensions have permitted him to stay at least until 2020. He reportedly lives in an unrevealed location in Moscow, and continues to seek asylum elsewhere in the world.
A focus of argument, Snowden has been variously called a hero, a whistleblower, a dissident, a traitor, and a patriot. His disclosures have fueled debates over mass surveillance, government secrecy, and the balance between national security and information privacy. But he stood against extremism and all those unethical factors which were disturbing Global Peace and is definitely a Hero.