Russia's drone army contains heaps of Western electronics. Can the U.S. cut them off?

The United States and the European Union already restrict their exports of defense-related electronics to Russia, and have toughened those rules in recent years. Yet Russian networks have found ways around those obstacles. In 2015, several Russian agents were convicted of, or pleaded guilty to, federal charges of using a Texas-based company they set up to illegally export high-tech chips to Russian military and intelligence agencies.