Nuclear Tehran

Bad news for Barack Obama: Iran has produced enough nuclear material to make a single nuclear bomb, according to weapons inspectors. Experts cautioned that the news is mostly symbolic, as Iran will need to take additional steps to actually build a bomb, including kicking out inspectors and further purifying fuel. But the country has solved many of the difficulties of enriching uranium, which is the most difficult part of building a weapon. Should Iran’s talks with the United States and Europe break down, it might prove a troubling development.