The Nuclear Club Expands - Starting with Iran The End of Nuclear Containment One of the stated goals of U.S. action against Iran is to prevent Tehran from acquiring nuclear weapons. The bitter irony is that the leadership of the Islamic Republic will now almost certainly make that its number one priority. Others may follow Iran’s example. According to the International Atomic Energy Agency, as of May 2025 Iran possessed more than 400 kg of uranium enriched to 60 percent, which, with further enrichment, would be sufficient to produce several warheads. At the same time, there are grounds to believe that Tehran was not planning to cross the nuclear threshold. In 2015, the country’s leadership supported the Joint Comprehensive Plan of Action, under which Iran agreed to abandon the pursuit of nuclear weapons in exchange for sanctions relief and assistance with integration into the global economy. The agreement functioned for several years until the first presidency of Donald Trump, who ...