WASHINGTON (Reuters) -U.S. Secretary of State Antony Blinken on Monday condemned the “unjustified seizure” of two Greek-flagged vessels by Iran’s Islamic Revolutionary Guard last week, the State Department said. Iranian forces seized two Greek tankers in the Gulf on Friday, shortly after Tehran warned it would take punitive action against Athens over the confiscation of Iranian oil by the United States from a tanker held off the Greek coast. “Iran’s continued harassment of vessels and interference with navigational rights and freedoms are a threat to maritime security and the global economy,” …