William R. Brownfield: “Implementation of an effective counternarcotics plan for Colombia is more important now than ever.”

It is impossible not to celebrate the end of 50 years of armed conflict.

This opioid crisis is perhaps our worst drug crisis in 30 years.

terrorist and insurgent groups have evolved into criminal entrepreneurs . . . engaging in illicit activities to finance their operations.

I, in fact, do believe the United States of America is confronting a nationwide heroin crisis.