The Obama administration’s increasingly frantic efforts to reach agreement with Iran have spurred demands for ever-greater concessions from Washington. Successive administrations, Democratic and Republican, worked hard, with varying success, to forestall or terminate efforts to acquire nuclear weapons by states as diverse as South Korea, Taiwan, Argentina, Brazil and South Africa. Even where civilian nuclear reactors were tolerated, access to the rest of the nuclear fuel cycle was typically avoided. Everyone involved understood why.

This gold standard is now everywhere in jeopardy because the president’s policy is empowering Iran. Whether diplomacy and sanctions would ever have worked against the hard-liners running Iran is unlikely. But abandoning the red line on weapons-grade fuel drawn originally by the Europeans in 2003, and by the United Nations Security Council in several resolutions, has alarmed the Middle East and effectively handed a permit to Iran’s nuclear weapons establishment.

The inescapable conclusion is that Iran will not negotiate away its nuclear program. Nor will sanctions block its building a broad and deep weapons infrastructure. The inconvenient truth is that only military action like Israel’s 1981 attack on Saddam Hussein’s Osirak reactor in Iraq or its 2007 destruction of a Syrian reactor, designed and built by North Korea, can accomplish what is required. Time is terribly short, but a strike can still succeed.