The interim agreement with Iran recognizes that Tehran's nuclear program is not going away, and that neither tougher sanctions nor the threat of military strikes can change that.
The best chance for the United States and its European and Middle Eastern allies to prevent Iran from building nuclear weapons is — as the Joint Plan of Action, signed at 4 a.m. Sunday in Geneva, says — by converting this interim agreement into "a mutually agreed long-term comprehensive solution that would ensure Iran's nuclear program will be exclusively peaceful."
Easier said than done.