If you believe illegal immigration isn't a problem for citizens, both natural and naturalized, think again. Of the 267 MS-13 gang members arrested in Operation Raging Bull, 16 were citizens, while the other 198 were foreign nationals. Only five of the foreign nationals had legal status. Sixty-four of those crossed the border illegally as unaccompanied alien children. MS-13 has more than 10,000 members across 40 states, and is one of the most dangerous criminal organizations in the United States today.