Border Arrests Plummet in 2026, Raising Questions About Hidden Impacts

Southwest Border Patrol recorded a sharp decline in apprehensions in early 2026, with January figures 79% below the same month in 2025 and an 84% drop in total encounters, averaging 298 arrests per day by April. These numbers reflect only the people officers met, not those who may have entered successfully, why fewer attempted the journey, or what followed the decrease. The piece argues that the drop cannot be pinned to a single policy, citing Mexican enforcement, pre-existing asylum limits and broader migration patterns as contributing factors.

While seizures of major drugs, especially fentanyl, rose and most were intercepted at ports of entry, the total amount reaching the United States remains unknown. The author highlights a systemic accounting gap: costs of enforcement are documented, but benefits of prevention exist only as estimates. To close this gap, three reforms are proposed: replace vague “averted harm” with measurable metrics, publish outputs, outcomes and costs together, and set clear baselines and targets before policies launch. Ultimately, the article warns that without such transparency, public debate will continue to focus on visible costs while the unseen benefits of deterrence remain invisible.