The United States is facing a historic crisis over fentanyl, while Trump is reactivating his war on drugs with a punitive strategy that puts pressure on Latin America and relegates prevention.

Co-author Jonathan D. Rosen The growing number of migrant "caravans" to the United States illustrates the wide range of challenges facing many Latin American countries. But the danger continues even after they leave their respective territories.

Co-author Jonathan D. Rosen Governments on both sides of the political spectrum have implemented security policies and "mano dura" (heavy-handed) strategies have become increasingly popular. But according to research, these policies have limited impact.