The next time you interact with a police officer, you might be staring at the eye of a video camera. About a third of U.S. police departments (and more internationally) have issued body cameras to their patrol officers. Here's what you need to know.
According to a 2005 report by the Department of Justice, there are at least 21,500 gangs and more than 731,000 active gang members in the United States. Learn how and why street gangs form.