U.S. and Iran Briefly Resumed Nuclear Talks—Then Quit

The U.S. and Iran started talks about nuclear limits in Switzerland on June 18. Within a day, both walked away. These were the first serious negotiations since 2015, when a previous nuclear deal fell apart. Officials won't say why talks failed—disagreements may have involved how much uranium Iran can enrich, when to lift economic penalties, or whether any deal would stick long-term.