http://www.lbnelert.com/wp-content/uploads/2012/04/gang.jpgINVESTIGATES: The F.B.I. now puts Gang membership at 1.4 million or about half of one percent of the total U.S. population. However, gangs are one of the fastest growing segments of society, having increased 40 percent in just the last three years.

美国联邦调查局认为美国现有一百四十万约占0.5%总人口的帮派分子；它是美国社会增长最快的群体之一，最近三年增长了40%。