Whistleblower Risked All to Expose NSA's Illegal Mass Surveillance

Mar 12, 2025
Electronic Frontier Foundation
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Summary

Mark Klein, a courageous AT&T whistleblower, risked everything to expose the NSA's illegal mass surveillance program, providing evidence that sparked lawsuits and public efforts to end unconstitutional spying, though the government has yet to fully address the issue.

Key Points

  • Mark Klein was an AT&T technician who revealed the NSA's secret mass surveillance program by providing evidence of a secret room at an AT&T facility that copied internet data for the NSA
  • Klein risked civil and criminal liability to expose the illegal spying, inspiring EFF's lawsuits against the NSA and public efforts to end mass surveillance
  • Despite his bravery and the evidence he provided, Congress and the courts have so far failed to take necessary steps to end the illegal spying Klein uncovered

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