Over the next six months, the fine details of a long-term nuclear deal will receive enormous attention and debate. Given the attention that Iran’s nuclear program has received over the past decade or more, that level of scrutiny is unavoidable. But in the end the nuclear issue doesn’t matter that much; what matters is whether an agreement on that issue will allow relations between Iran and the United States and the rest of the P5+1 to normalize in the months and years ahead. And it is that development that opponents of an agreement will be desperate to prevent.