Benjamin Netanyahu, Israel's prime minister, played an absolutely crucial role in motivating the world, and the Obama administration, to oppose Iran's nuclear ambitions. But he has become an impotent player in this drama in part because he seeks a perfect solution to the Iranian challenge. There is no perfect solution.
You can't continue to sanction them and get them to drop nuclear research. Iran will undoubtedly be more powerful that it was before, but without the specter of a nuclear device to support its ambitions in the future.