People dressed as zombies react to the camera during the V edition of the so-called ‘Zombie Walk’ in Mexico City, Saturday, Nov. 26, 2011. According to the organization ‘Zombie Walk Mexico’, the event gathered over 9,800 participants, breaking the previous record set in Asbury Park, in New Jersey in 2010 with 4,093 participants. Guinness World Records have not officially confirmed if Mexico holds the new record. (AP Photo/Marco Ugarte)