The US Treasury announced new sanctions designed to crack down on the so-called “shadow fleet” or oil tankers and the companies that facilitate the sale of Iran’s oil. The Trump administration is ratcheting up the pressure with its sights on Iran’s nuclear program, insisting that any plans or operations to develop a nuclear weapon must stop. Ali Vaez is the Crisis Group’s project director for Iran. He speaks with Host Carolyn Beeler about which entities the sanctions target and what direction US and Iranian relations are taking.