In this edition of Sanctions Watch, covering April 2023: US Rep. Greg Casar says US asset freeze helped create Afghanistan’s humanitarian crisis; amid soaring food prices, the US embargo is blocking agricultural exports to Cuba; the World Bank points to sanctions as the cause of sluggish growth in Iran; nuclear envoys call for greater enforcement of UN resolution barring North Koreans from working overseas; the US suggests a total ban of exports to Russia; doctors in Syria say sanctions hinder a