Downtown San Salvador was rocked by clashes between police and protesters May 12 after authorities tried to clear the stalls of street merchants who were peddling pirate CDs and other contraband. The elite riot squad, the Unit for the Maintenance of Order (UMO), was called to the scene as street merchants burned tires and hurled stones at police, in what President Elías Antonio Saca called "acts of terrorism." Seventeen people were arrested and a general evacuation of the downtown area was ordered. (Diario CoLatino, May 14)

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