The U.S. and five other world powers have an offer they say Iran can’t refuse — if it knows what’s best for it. The six nations on Thursday came up with incentives they hope will persuade Tehran to stop suspect nuclear activities, but made it clear that Iran risks U.N. sanctions if it rejects the package. “There are two paths ahead,” British Foreign Secretary Margaret Becket said in announcing the proposals put together by the United States, Britain, France, Germany, Russia and China. Full Story