Last year, the U.S. attorney for Southern California unexpectedly dropped a two-year investigation of Armstrong for crimes reportedly including drug distribution, fraud and conspiracy. At the time, sources said that agents had recommended an indictment of Armstrong and were unsure of why the case was dropped.
According to the ABC report, the federal investigators’ concern now is not Armstrong’s drug use, but his alleged efforts to conceal that drug use by threatening and interfering with potential witnesses.
Armstrong confessed to lying and using performance-enhancing drugs throughout his career in a televised interview with Oprah Winfrey. To end his lifetime ban from competition, though, he would have to confess under oath before investigators by Feb. 6.