The Department of Homeland Security (DHS) has identified over 600 migrants in the U.S. with possible ties to the Venezuelan gang Tren de Aragua, with about 100 recommended for inclusion on the FBI watchlist as 'subjects of interest.' The gang, originating from Venezuela's Tocoron prison, has expanded across several countries, including the U.S., where it is active in at least 15 states. While some migrants are confirmed gang members, others are victims, witnesses, or have indirect associations. Criticisms of the Biden administration’s immigration policies include accusations of security lapses, such as failure to identify gang tattoos during refugee screenings. Immigration and Customs Enforcement has arrested over 100 gang members since October 2022, but only a few are currently in custody. The DHS is conducting ongoing re-screening operations to address the threat posed by the gang, with responses ranging from prosecution to expedited removal for confirmed members.