Running of the bulls: San Fermin festival 2013

Running of the bulls: San Fermin festival 2013

An 'El Pilar' fighting bull follows a reveler during the running of the bulls of the San Fermin festival, in Pamplona, Spain, Friday, July 12, 2013. (AP Photo/Daniel Ochoa de Olza)

An 'El Pilar' fighting bull follows a reveler during the running of the bulls of the San Fermin festival, in Pamplona, Spain, Friday, July 12, 2013. (AP Photo/Daniel Ochoa de Olza)

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