Iran closes Strait of Hormuz once again, fires on tankers

Iran said on Saturday that the Strait of Hormuz is again closed to traffic following threats of such action if the U.S. continued its blockade of the shipping channel.Why it matters: The closure could be a setback to efforts toward a new round of negotiations on a deal to end the war and will add pressure to an already tense situation between Iran and the U.S.The latest: Fars, Iran's semi-official state news agency, first reported the closure, citing the ongoing blockade and quoting an Iranian o...