When it reached the Joint Comprehensive Plan of Action (JCPOA) nuclear deal with the USA and five other countries in 2015, Iran also undertook to implement the "Additional Protocol" of the nuclear Non-Proliferation Treaty (NPT), which allows IAEA inspectors access to facilities that raise concerns.
Trump has made clear that "we must take into account the totality of Iranian threats, not just its nuclear capabilities", the top USA diplomat said, citing obligations to uphold regional and worldwide security. Trump has publicly contemplated withholding certification of the JCPOA in mid-October regardless of Iranian actions, which would nearly certainly upend the nuclear accord by triggering the reinstatement of nuclear sanctions.
Under U.S. law, the president must certify to Congress every 90 days whether Iran is adhering to the agreement.
"I think President Obama would say the deal is not ideal".
Unfortunately, Donald Trump and his administration have cast doubt on continued American compliance with the JCPOA in a series of concerning statements and reports.
Tehran says it plans to adhere to the nuclear deal regardless of any probable U.S. decision to withdraw from the agreement.
That's produced a search for new options before the October 15 deadline under a law requiring the president to certify every 90 days that Iran is complying with the accord.
The abrogation of the nuclear deal would lend a tremendous blow to the global credibility of major powers that signed the deal with Iran.
"[Washington's] blocking sale of planes to Iran is another reason why we shouldn't rely on the United States and its allies". Nikki Haley, the USA ambassador to the United Nations, last week laid out a scenario under which Trump would keep the U.S.in the deal but refuse to certify Iran's compliance with it, kicking the problem to Congress and forcing it to decide whether to reimpose sanctions that were eased under the agreement.
"We are not going to stand for what they are doing to this country", Trump told reporters traveling with him on Air Force One.
Conversely, the USA could be seen as having violated a deal that was working, and the Iranians will feel free to resume their nuclear activities.
What Amano did not say, however, is whether military sites are now being inspected - something critics of the deal might seize upon.
Iran rejects that it has broken the agreement.
People familiar with internal discussions said Haley's team didn't work out her speech with Tillerson and his team in advance.
At the time, Israel's objections were dismissed and derided by the White House. Next month, the Brookings Institution will host an off-the-record meeting of policy experts - some who favored the deal, some who oppose it - to discuss how to address the nuclear agreement's flaws.
With assistance from Jonathan Tirone Helene Fouquet Thomas Penny Katharina Rosskopf and Kambiz Foroohar.