Jamileh Alamolhoda, the wife of Iranian President Ebrahim Raisi, talks about why Iran's government is unwilling to compromise on compulsory headscarf rules.
It's the latest in what has been decades of prisoner swaps between the two countries. The Americans include Siamak Namazi, held since 2015, and Morad Tahbaz and Emad Shargi, both detained in 2018.
The death of a young woman in Iranian morality police custody sparked months of protests and a violent crackdown by the government. A year later, a more subdued defiance endures.
Swedish lawmakers had said they would boycott this year's Nobel Prize ceremonies in Stockholm after the foundation initially invited representatives of the three countries to attend.