Flash Mob

Mpls Police Increase Patrols Downtown After Mob AssaultsPolice are investigating six cases of what they say is a new phenomenon: violent flash mob attacks on innocent people in downtown Minneapolis.
Another Flash Mob RobberyAnother flash mob theft took place at a convenience store. This time in Washington DC.
Seattle Flash MobA flash mob in Seattle recently re-created Glee's "Singin' in the Rain" scene. We've got the link.