Olympics chief vows 'zero tolerance' for results tainted by doping

IOC president Thomas Bach on Monday vowed "zero tolerance" for any Olympics athletics results tainted by doping, but the head of world athletics said new revelations were part of a campaign to "redistribute" medals. Allegations of mass doping made by German broadcaster ARD and the Sunday Times newspaper of Britain have plunged athletics into a new cheating crisis less than three weeks before the world championships start in Beijing. ARD and the Sunday Times obtained an athlet