Mexico City: Two cities in Mexico are under siege as the country attempts to crackdown on a surge in homicides, police corruption and gang violence.After years of insulation from the worst of the violent crime that has plagued the country, Mexico City has seen homicides rise 45 per cent since 2014, according to a report published on Wednesday. Police have had a tough job keeping the law and order in Acapulco in recent years. Photo: Glen McCurtayne/Coleman Rayner Meanwhile, gang violence and police corruption in the seaside city of Acapulco has prompted Mexican authorities to . . .