Cycling doping inquiry surrounding Armstrong could broadenFederal authorities are considering whether they can expand the investigation beyond traditional drug distribution to investigate allegations that Lance Armstrong and other top cyclists engaged in doping.

The authorities are striving to identify whether Armstrong, the managers and owners of his cycling teams in the past and his teammates entered into a conspiracy for defrauding their sponsors by doping in order to garner more money and prizes besides improving performance.

The federal agent Jeff Novitzky, who has been the lead investigator on the major doping investigations since the BALCO case began in 2002, is playing a direct role in the investigation.