An anonymous reader cites a report on USA Today: Online social media company Twitter has reportedly blocked U.S. intelligence agencies from access to a widely used data mining service it partly owns. Twitter told Dataminr, the business partner that sifts through and provides access to the full output of the San Francisco-based firm's social media postings known as tweets, that it didn't want the service provided to government investigators, The Wall Street Journal reported Monday. Twitter made the decision because the company did not like the "optics" of appearing too close to U.S. spy agencies, the Journal reported, citing an unidentified intelligence official. The issue could further escalate the public privacy vs. government security tensions between high tech firms and the federal government as investigators seek access to social media and other electronic data in an effort to detect and avert suspected terrorist plots. Newsweek's Kenneth Li said: "This makes no sense. So, dataminr's hedge fund customers are ok, but not the government?"