Rome - A second round of U.S.-Iran nuclear talks are underway, this time in Rome, with President Trump's envoy Steve Witkoff and Iranian Foreign Minister Abbas Araghchi leading the delegations. Why it matters: The talks are taking place with debate still raging within the Trump administration — and between the U.

U.S. President Donald Trump blocked a planned Israeli attack on Iranian nuclear facilities, "The New York Times" reported on Wednesday, citing officials from the president's administration. What do you need to know?