I just read an interview in El Pais of the secretary general of the Spanish Federation of Sports Medicine. The guy stated that food contamination is possible but very unlikely (since, if clenbuterol is fed to the cows, it would be digested and traces would be in the kidneys and liver, not the muscles). What plays in Contador's favor, he said, was that that substance is very easy to detect and to be effective for doping, it requires continued use in large doses.

VeloNews also reports that Mosquera, the Vuelta runner up, tested positive for HES: "The substance is used to increase the volume of blood plasma and make evidence of EPO use harder to detect." Bad day for Spanish cycling.