In Memoriam: Mark Klein, AT&T Whistleblower Who Revealed NSA Mass SpyingMark Klein was a hero who exposed illegal NSA spying, risking personal safety to defend civil liberties.
RIP Mark Klein, the engineer who exposed US domestic spyingMark Klein bravely revealed extensive government surveillance on citizens, risking his career and safety to expose illegal activities at AT&T.
In Memoriam: Mark Klein, AT&T Whistleblower Who Revealed NSA Mass SpyingMark Klein was a hero who exposed illegal NSA spying, risking personal safety to defend civil liberties.
RIP Mark Klein, the engineer who exposed US domestic spyingMark Klein bravely revealed extensive government surveillance on citizens, risking his career and safety to expose illegal activities at AT&T.
AT&T technician Mark Klein, who exposed secret NSA spying, dies | TechCrunchMark Klein, whistleblower on NSA surveillance, has passed away at 79, revealing significant government access to American internet data.