A policeman walks in front of a burning car used by gunmen after clashes between criminals and federal agents in Veracruz July 13, 2009. According to the police, gunmen traveling in a white car opened fire on the federal agents in downtown Veracruz. Police reported that two gunmen were killed, one arrested and three police wounded. BEST QUALITY AVAILABLE REUTERS/Martin Lara Reina (MEXICO CONFLICT)