In early 2013, whistleblower Edward Snowden began working with journalists to reveal widespread mass surveillance programs conducted by the National Security Agency. Articles based on Snowden's documents have revealed the existence of numerous global surveillance programs run by the NSA with the cooperation of telecommunication companies and other governments.
Around the beginning of 2013, Edward Snowden began working with journalists to uncover a large-scale network of secret surveillance operations run by the National Security Agency. Subsequent articles based on Snowden's leaked documents have shed light on the existence of numerous global surveillance programs that involve cooperation between the NSA and telecommunications companies as well as other governments.