Some news about on on the NSA tracking BTC users, according to Edward Snowden papers

National Security Agency keeping tabs on bitcoin users globally

  • Report from March 2013
  • cataloging and cross-referencing of data that ultimately helped them to "track down the senders and receivers of bitcoins"
  • NSA called its bitcoin spying project Oakstar
  • Initial focus of the mission was counterterrorism-focused
  • NSA appear to have been monitoring groups that were using the level of anonymity allowed by bitcoin transactions for clandestine purposes, such as money laundering activities

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More here at the link

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