Attorney General Jeff Sessions announced "that he's designated the MS-13 street gang as a priority for the Justice Department's Organized Crime Drug Enforcement Task Forces -- enabling authorities to target the gang with a broader array of federal resources" as reported by The Washington Times:
The priority designation will instruct federal agencies such as the IRS, FBI, Drug Enforcement Administration and Immigration and Customs Enforcement to target the El Salvador-based gang not just with drug laws but also tax, racketeering and firearms laws. Prior to this year, the task force was only able to get involved in cases when they involved the drug trade or money laundering. But changes to the task force's authority in this year's budget allow the Justice Department to directly name an organization as a priority.
MS-13 is a transnational gang based in El Salvador but further operates in 40 U.S. states with about 8,000 members. Its money-making rackets principally include drug trafficking, child prostitution and extortion demands against Hispanic businesses.
Further reading that may be of interest: