Soldiers guard a policeman from the municipality of San Nicolas detained during an operation at the police headquarters in Monterrey, northern Mexico June 17, 2009. The army and the state agency of investigations staged an operation to detain policemen who took part in the blockades of June 8 in an effort to crack down on corrupted policemen in Mexico's richest city, according to local media. The June 8 blockades were held to protest the arrest of an agent involved with a drug kingpin. REUTERS/Tomas Bravo (MEXICO POLITICS MILITARY CONFLICT SOCIETY)
REUTERS/TOMAS BRAVO