Police officers drive past a burning police vehicle in Zihuatanejo, Mexico. In a three-week period, five grenade attacks were launched on police patrols and stations. Narcotics traffickers are acquiring firepower more appropriate to an army -- including grenade launchers and anti-tank rockets -- and the police are feeling outgunned. The Feb. 21 attack on police headquarters in coastal Zihuatanejo, which injured four people, fit a disturbing trend of Mexico's drug wars. Traffickers have escalated their arms race, acquiring military-grade weapons, including hand grenades, grenade launchers, armor-piercing munitions and antitank rockets with firepower far beyond the assault rifles and pistols that have dominated their arsenals.
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