Iran’s response to President Trump’s decertification of the nuclear deal, teased all week and finally made official on Friday, includes a mixture of belligerent rhetoric, ominous threats, and uncertainty about whether the deal can survive. Belligerent rhetoric poured in for days as decertification became a certainty. Among the latest examples was Brig. General Esmail Ghaani, deputy commander of the infamous Quds Force, declaring that Iran is ready to “bury” President Trump. “We are not a war-mongering country. But any military action against Iran will be regretted. … Trump’s threats against Iran will damage America,” Ghaani said to Iran’s Tansim News...