Can Trump's economic war against Iran do what airstrikes and negotiations couldn't?

What a new round of U.S. sanctions could mean after nearly six months of war with Iran — and years of economic pressure on the country.

<img src='https://npr.brightspotcdn.com/dims3/default/strip/false/crop/8516x5678+0+0/resize/8516x5678!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F6a%2F47%2Fdba05d284318a540221bd45f9cfb%2Fap26122373189543.jpg' alt='Vehicles drive past a billboard with an illustration showing the Strait of Hormuz and the sewn lips of President Trump in a square in downtown Tehran, Iran, May 2.'/><p>What a new round of U.S. sanctions could mean after nearly six months of war with Iran — and years of economic pressure on the country.</p><p>(Image credit: Vahid Salemi)</p><img src='https://media.npr.org/include/images/tracking/npr-rss-pixel.png?story=nx-s1-5943572' />