A new round of negotiations over the Middle East war was set to kick off on Sunday as Iranian negotiators and US Vice-President J.D. Vance arrived in the Swiss host city, even as Tehran said it was closing the Strait of Hormuz again over Israeli attacks in Lebanon. Before boarding his flight to Europe, Vance told reporters he hoped to “make progress on the nuclear issue, make progress on the Lebanon ceasefire issue. Those are the two big things that I think we’re going to be focused...