The future looked bright for Luis Eduardo Perez Parra, Leonel Rivas Gonzalez and Abrahan Josue Barrios last week. After being held in immigration custody for over a year and facing the possibility of transfer to Guantánamo Bay, the three men asked a federal court to intervene, warning they might have “disappeared into the legal black hole” of Guantánamo. Last Sunday, a federal judge in New Mexico handed down a surprise ruling blocking the Trump administration from sending the men to Guantánamo -- the first successful legal challenge to the policy since it was enacted last month. But their victory was...