The White House stated its intent to restrict Iran's oil export revenue through patrols in the Strait of Hormuz. However, experts caution that such naval blockades are often unpredictable and difficult to successfully enforce.

The White House says it wants to choke off Iran's oil export revenue. But experts say that blockades are often unpredictable and difficult to enforce. <img alt="The U.S. Navy" src="https://npr.brightspotcdn.com/dims3/default/strip/false/crop/5014x3343+0+0/resize/5014x3343!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F18%2F4a%2F8a27e0474fb6ac54d39689514af0%2Fgettyimages-2262090976.jpg" /><p>The White House says it wants to choke off Iran's oil export revenue. But experts say that blockades...