Feds won't charge Armstrong with doping

Associated Press
Lance Armstrong competes during the 2011 XTERRA World Championship triathalon on Sunday, Oct. 23, 2011, in Kapalua, Hawaii. Armstrong finished 23rd. (AP Photo/Wayne Jones)

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Federal prosecutors closed their investigation of Lance Armstrong without charging him over allegations he used performance-enhancing drugs Feb. 3, ending a nearly two-year effort aimed at examining whether a doping program was created to keep the seven-time Tour de France winner and his teammates running at the head of the pack.