he didn't cheat, he didn't dope, he did what he had to do because it's a BIKE RACE. Other former winners including Bernard Hinault, Laurent Fignon, Bernard thevenet...all said the same thing. It happens, it sucks, but it's bike racing. I think it's wrong for people to boo contador...he didn't do anything nasty or underhanded. it's not like he put a banana peel in front of the guy's bike.
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You can catch more flies with honey than with vinegar. That's great...if you want to attract vermin.