Edward Snowden Exposed Global Surveillance—and Never Returned to the U.S.

In 2013, Edward Snowden gave journalists a large archive of classified documents describing surveillance by the U.S. National Security Agency and its partners. The disclosures changed privacy law, technology design and public expectations about government access to data.

From contractor to source

Snowden had worked for the CIA and as an NSA contractor. While assigned in Hawaii, he collected documents and travelled to Hong Kong, where he met journalists Glenn Greenwald and Ewen MacAskill and filmmaker Laura Poitras.

The resulting stories described programs involving bulk telephone metadata, internet communications and cooperation with technology and telecommunications companies.

Edward Snowden during the first public reporting on the NSA disclosures.

What changed

Court decisions, legislative debate and investigative reporting followed. In 2015, the USA Freedom Act ended the NSA’s bulk storage of certain domestic telephone metadata under the program revealed in the reporting, replacing it with a narrower system.

Technology companies accelerated encryption, transparency reporting and defenses against government interception.

The unresolved legal divide

The U.S. charged Snowden with theft of government property and violations of the Espionage Act. He travelled to Russia, where he received asylum and later citizenship. He has not faced trial in the United States.

Supporters call him a whistleblower who revealed unconstitutional or excessive surveillance. U.S. officials argue he unlawfully removed classified material and damaged intelligence capabilities.

The geek lesson

Snowden showed that system administrators can see—and copy—extraordinary amounts of information. His case forced institutions to confront both mass surveillance and the insider access required to operate it.