President Donald Trump's plan to impose tariffs on goods from Mexico, Canada and China is partly aimed at combating the illicit flow of fentanyl into the U.S., where the opioid is blamed for some 70,000 overdose deaths annually.

Once fentanyl leaves the labs, it’s usually well concealed in hidden compartments of vehicles or in huge cargo trucks; better detection technology is crucial, in addition to mor

Trump administration says tariffs on Mexico, Canada and China critical to preventing fentanyl and other drugs from pouring across the U.S. border, and are not part of an international trade war.