AT&T Whistleblower Mark Klein Exposed NSA's Secret Mass Surveillance Program

Summary

This article recounts the story of Mark Klein, a former AT&T technician who became a whistleblower after discovering that the National Security Agency (NSA) had secretly installed surveillance equipment in Room 641A of AT&T's Folsom Street building in San Francisco. The equipment allowed the government to wiretap and monitor Americans' communications without warrants. The article details how Klein approached the Electronic Frontier Foundation (EFF) in 2006 with evidence, leading to a major lawsuit exposing the NSA's mass surveillance program. It describes the technical setup, the legal battle, and the broader implications for privacy and civil liberties in the digital age.