El Salvador’s ongoing crackdown on gangs could prompt those still free to flee the embattled nation moving north toward the U.S. Some leaders of the infamously violent MS-13 gang have already fled to Mexico. Jessica Vaughan, director of policy studies at the Center for Immigration Studies, referring to Biden’s border policies, said, “Right now it’s not difficult for them to get in. There is much less threat of border and interior enforcement than in prior years, especially if they have not been in the United States before.â€