(CNN) — The Trump administration is escalating efforts to crack down on gangs that move illicit drugs into the United States, with deadly military strikes at sea and measures to toughen up borders ...

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.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Increasingly powerful gangs have attacked ...

Anyone who has followed the devastating violence in California’s prisons knows that gang rivalries trigger a lot of the bloodshed. So it stood to reason that if the authorities could get members to ...