Common police strategy for preventing flash mobs has been tightening of curfews. Aug. 27, 2011— -- When a massive flash mob rampaged outside the Wisconsin State Fair injuring 11 fairgoers on Aug.

A 7-Eleven store clerk in Anaheim, California, outside Los Angeles was brutally beaten by about 50 suspects in the early hours of Sunday morning. The attack against the store clerk, identified only as ...