A significant majority of Americans — some 77% of those polled — see the “development of nuclear weapons by Iran” as a “critical threat”; another 16% see it as “important but not critical”, according to new numbers from Gallup. With US-Iran talks reportedly set to resume Friday, the poll, which asks Americans to assess a variety of threats to U.S. interests as “critical”, “important but not critical”, or “not important” — will likely take on a new and ominous significance. The poll placed the question of Iranian nukes near the top of the list of threats Gallup asked about, behind...