To reach an effective non-proliferation deal with Iran, the U.S must abandon zero enrichment of uranium as a requirement. Unless Trump is willing to show more flexibility and realism regarding the future of Iran’s nuclear activities, the United States will miss another opportunity to address Iran's growing proliferation risk.

President Donald Trump's missile defense executive order calls for a new architecture for homeland ballistic and cruise missile defense and outlines a policy shift toward defending or deterring “any foreign aerial attack on the Homeland.” 

The long-running Iranian nuclear crisis is reaching a tipping point. Since his re-election in November, U.S. President Donald Trump has consistently expressed support for reaching a nuclear agreement with Iran, but his administration’s rhetoric toward Tehran sends mixed signals about U.S. diplomatic intentions.