Iranians set ablaze an American flag last month in Tehran during a rally following the U.S. designation of Iran’s Revolutionary Guard Corps as a terrorist organization. (Rouzbeh Fouladi/NurPhoto/Getty Images) Iran has made a dramatic shift in how it confronts the United States, abandoning a policy of restraint in recent weeks for a series of offensive actions aimed at pushing the White House to rethink its efforts at isolating Tehran, say diplomats and analysts. With the Trump administration tightening economic sanctions and intensifying military pressure, Iran is now seeking to highlight the costs it could also impose on the United States — for instance, by disrupting the world’s oil supply — without taking actions likely to trigger an all-out war. When four ships were damaged in the Persian Gulf last week, including two Saudi tankers and an Emirati one, U.S. and Arab officials said they suspected Iran had ordered the […]