Law enforcement officials estimate that tens of thousands of gangs are active across the United States, ranging from ...

Law enforcement agencies estimate that tens of thousands of gangs operate across the United States today. These groups range from street gangs and prison gangs to organized criminal networks.

Add Yahoo as a preferred source to see more of our stories on Google. Billy Queen was an undercover agent for the Bureau of Alcohol, Tobacco, Firearms and Explosives. He spent almost three years ...

Nine suspected gang members died and 170 were arrested after a meeting between rival Texas biker groups turned into a violent brawl -- a meeting that was originally scheduled for the gang members to ...