Klein, a former AT&T technician turned whistleblower, exposed mass surveillance by the U.S. government in 2006. © 2024 TechCrunch. All rights reserved. For personal use only.
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Klein, a former AT&T technician turned whistleblower, exposed mass surveillance by the U.S. government in 2006. © 2024 TechCrunch. All rights reserved. For personal use only.