Brent Scowcroft, retired USAF Lieutenant General, and former US National Security Advisor:
In my view, the JCPOA meets the key objective, shared by recent administrations of both parties, that Iran limit itself to a strictly civilian nuclear program with unprecedented verification and monitoring by the International Atomic Energy Agency and the U.N. Security Council. Iran has committed to never developing or acquiring a nuclear weapon; the deal ensures that this will be the case for at least 15 years and likely longer, unless Iran repudiates the inspection regime and its commitments under the Treaty on the Non-Proliferation of Nuclear Weapons and Additional Protocol.
There is no more credible expert on nuclear weapons than Energy Secretary Ernest Moniz, who led the technical negotiating team. When he asserts that the JCPOA blocks each of Iran’s pathways to the fissile material necessary to make a nuclear weapon, responsible people listen. Twenty-nine eminent U.S. nuclear scientists have endorsed Moniz’s assertions.
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Congress rightfully is conducting a full review and hearing from proponents and opponents of the nuclear deal. However, the seeming effort to make the JCPOA the ultimate test of Congress’s commitment to Israel is probably unprecedented in the annals of relations between two vibrant democracies. Let us be clear: There is no credible alternative were Congress to prevent U.S. participation in the nuclear deal. If we walk away, we walk away alone. The world’s leading powers worked together effectively because of U.S. leadership. To turn our back on this accomplishment would be an abdication of the United States’ unique role and responsibility, incurring justified dismay among our allies and friends. We would lose all leverage over Iran’s nuclear activities. The international sanctions regime would dissolve. And no member of Congress should be under the illusion that another U.S. invasion of the Middle East would be helpful.