DOLLAR PUSHES TO ONE-WEEK HIGH AS US-IRAN TENSIONS REIGNITE The U.S. dollar firmed to its highest level ​in a week against major currencies on Monday before paring gains as renewed U.S.-Iran tensions and fading hopes for a Middle East ‌peace deal sent investors toward safe havens. The United States said on Sunday that it had seized an Iranian cargo ship that tried to run its blockade, while Iran said it would retaliate, stoking fears about a resumption of hostilities.