President Donald Trump's threat of tariffs on goods from Mexico, Canada and China is aimed at stopping the flow of fentanyl into the U.S. Ingredients for fentanyl are produced in China and used by pharmaceutical companies to make legal painkillers.

President Donald Trump has signed an executive order saying the United States will designate drug cartels as foreign terrorist organizations, a move that could push a militarized agenda for the border and Latin America.

A Colombian national police officer who was part of an elite unit that worked closely with U.S. anti-narcotics agents has been extradited to Miami to stand trial on charges he betrayed the Drug Enforcement Administration to the same traffickers they were jointly fighting.