With the admission of a uranium-enriching plant, Iran is forcing the world’s hand. On Thursday, when Iran meets in Geneva with the five members of the U.N. Security Council, its nuclear program is first on the list of topics. On Saturday, President Barack Obama threatened “sanctions that would bite” if Iran didn’t fall in line. And defense secretary Robert Gates reiterated that on CNN’s State of the Union on Sunday—the same day that Iran’s Revolutionary Guard shot off short-range missiles. While Britain, France, Russia and the U.S. are prepared to enforce economic sanctions, China is reluctant due to its heavy Iranian oil imports.