Iranian officials made a point to stress that the uranium would be enriched only to the 3.67% limit set under the 2015 nuclear deal with world powers, making it usable for a power plant but far below what's needed for an atomic weapon.
But by increasing production, Iran soon will go beyond the stockpile limitations set by the accord. Tehran has set a July 7 deadline for Europe to come up with new terms for the deal, or it will enrich closer to weapons-grade levels in a Middle East already on edge. The Trump administration has deployed bombers and an aircraft carrier to the region over still-unspecified threats from Iran.
Already this month, officials in the United Arab Emirates alleged that four oil tankers were damaged in a sabotage attack; Yemeni rebels allied with Iran launched a drone attack on an oil pipeline in Saudi Arabia; and U.S. diplomats relayed a warning that commercial airlines could be misidentified by Iran and attacked, something dismissed by Tehran.