Iran 's top diplomat has written to the UN secretary general over an incident Sunday at the Natanz nuclear facility, terming it " nuclear terrorism" that he says "won't go unpunished.” In a letter to Antonio Guterres on Monday, Foreign Minister Javad Zarif said the blackout at the facility was "dangerous, reckless sabotage” and held archfoe Israel responsible for it. He said the "timely and professional containment measures" by the ...