The Federal Bureau of Investigation has been reoriented toward counterterrorism in recent years, but continues to face charges of overreach.

The Colombian government and FARC rebels have signed a historic peace agreement that charts a path to sustainable peace after decades of civil war.

A leading killer among diseases is now targeted for eradication by the middle of this century. Efforts to combat malaria are costly and challenging.

The Zika virus, which has been found to cause severe birth defects, has spread across the Americas, prompting the World Health Organization to declare a global health emergency.

China and India increasingly vie for strategic advantage in the Indian Ocean, while also cooperating on some transnational security issues.