Another category — "flash mob" thefts or smash-and-grabs — can prove especially tricky to stop. The thieves strike in such large numbers that an individual store employee or security guard may ...

'Flash robs' take social-media driven 'flash mobs' into new and dark territory, using Twitter and Facebook to organize thefts. It's a sign of how the Internet can reshape criminal behavior.

Flash mobs are surprise gatherings of people who briefly perform an unusual act, and then disperse. But a Facebook plan for people to sing Christmas carols inside the Washington, D.C., Metro ...

Aug. 27, 2011 -- When a massive flash mob rampaged outside the Wisconsin State Fair injuring 11 fairgoers on Aug. 4, old-fashioned police work quickly led to the arrests of 31 people.

The roughly 20 dancers who took part in the flash mob are all amateurs. The group sported matching red shirts. “The fun thing is that everyone is at different levels,” said Mané.

Hundreds of people busted out Trump’s signature dance move at a flash mob on Staten Island. Aristide Economopoulos Aylward said he supports Trump’s immigration plan to enact mass deportations ...