Tehran’s announcement Monday that it will resume uranium conversion could end up killing a European effort to strike a diplomatic deal to freeze Iran’s nuclear programs, diplomats and experts said. Or, they said, it could be a bluff. On Monday, after months of preparation, Britain, France and Germany — known as the E-3 — struggled to decide whether Iran’s move to resume uranium conversion meant that its hard-line leadership had concluded that the incentives would be insufficient, or whether Tehran was posturing in hopes of extracting a better offer. Full Story