A two-year federal investigation into allegations that seven-time Tour de France champion Lance Armstrong used performance-enhancing drugs is closed, United States Attorney Andre Birotte Jr., announced on Friday. Investigators led by famed prosecutor Jeff Novitzky were searching for evidence that Armstrong's government-sponsored U.S. Postal team had cheated. Several former Armstrong teammates were rumored to have testified that he took performance enhancing drugs. Birotte's statement said that the government was "closing an investigation into allegations of federal criminal conduct by members and associates of a professional bicycle racing team owned in part by Lance Armstrong." The statement did not explain why the investigation had closed.
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