“They’re coming.” That’s what Miguel, a Venezuelan migrant who came to America with his wife and two daughters, told me about the gang, Tren de Aragua, earlier this year. “And they’re very bad.” The past few days have shown how far the Venezuelan gang appears willing to go. In Aurora, Colorado, Tren de Aragua has allegedly terrorized the local community. According to Mayor Mike Coffman, at least two buildings in the city “have fallen to” a group of armed men, suspected to be gang members. “This is an organized criminal effort. Whether it’s Tren de Aragua, that remains to be...