It started innocently enough seven years ago as an act of performance art where people linked through social-networking Web sites and text messaging suddenly gathered on the streets for impromptu pillow fights in New York, group disco routines in London, and even a huge snowball fight in Washington.
But these so-called flash mobs have taken a more aggressive and raucous turn here as hundreds of teenagers have been converging downtown for a ritual that is part bullying, part running of the bulls: sprinting down the block, the teenagers sometimes pause to brawl with one another, assault pedestrians or vandalize property.
The flash mobs have raised questions about race and class.
Most of the teenagers who have taken part in them are black and from poor neighborhoods. Most of the areas hit have been predominantly white business districts.
In the flash mob on Saturday, groups of teenagers were chanting “black boys” and “burn the city,” bystanders said.
In a Feb. 16 melee, 150 teenagers spilled out of the Gallery shopping mall east of City Hall during rush hour and rampaged through Macy’s, knocking down customers and damaging displays.
[A story about a recent flash mob in Philadlephia can be read here.]