REYNOSA — Businesses were open, people crowded the main plaza, and life went on as usual for Reynosa residents Monday amid the elusive presence of hundreds of extra federal police officers. About 600 officers of the Policía Federal Preventiva (Mexican Federal Police) arrived in Reynosa on Sunday to begin a trilateral crackdown on organized crime and drug trafficking along the border. New Tamaulipas Gov. Eugenio Hernández Flores, secretary of public security Ramón Martín Huerta and Reynosa Mayor Francisco García Cabeza de Vaca are working with federal, state and local authorities to "combat and confront face to face in (Reynosa), like...