As a result, the “break time” — the time when Iran would be able to produce enough material for a single nuclear weapon — will increase from two to three months to a year, according to U.S. officials and U.S. intelligence agencies.    [d] A report published in August 2015 by a group of experts from Harvard University`s Belfer Center for Science and International Affairs agrees with these estimates, stating that according to the JCPOA, “the next decade would extend from the currently estimated epidemic period of 2 to 3 months to about a year.”  The Center for Arms Control and Non-Proliferation also accepts these estimates.   In contrast, Alan J. Kuperman, coordinator of the nuclear proliferation prevention project at the University of Texas at Austin, denied the one-year assessment, arguing that Iran`s break-up time under the deal would be “only about three months, not much longer than it is today.”  The agreement limits the number and type of centrifuges Iran can operate, the degree of enrichment, and the size of its stockpile of enriched uranium. (The mined uranium contains less than 1% of the uranium-235 isotope used in fission reactions, and centrifuges increase the concentration of this isotope. Uranium enriched to 5 percent is used in nuclear power plants, and at 20 percent it can be used in research reactors or for medical purposes. Highly enriched uranium, about 90 percent, is used in nuclear weapons.) But Iran also said it would continue to work with the International Atomic Energy Agency, the United Nations` nuclear watchdog, and that it would return to the nuclear deal if sanctions against it were lifted, according to the New York Times. Iran began gradually violating the agreement in May 2019. Tehran linked its decision to violate the limits of the JCPOA to the agreement`s failure to provide the sanctions relief provided for in the agreement. Iran is still a participant in the JCPOA and says it will return to compliance with the deal if its demands for sanctions relief are met.
On 17 August 2015, a group of 75 experts on arms control and nuclear non-proliferation issued a joint statement supporting the agreement.   The statement states: “The JCPOA is a strong, long-term and verifiable agreement that will be a net asset to international nuclear non-proliferation efforts” and that “the strict limits and transparency measures of the JCPOA will make it very likely that any future attempt by Iran to seek nuclear weapons, itself a secret program, would be immediately recognized, offering the possibility of: intervening decisively to prevent Iran from acquiring a nuclear weapon.”   The letter was organized by the Nonpartisan Arms Control Association.  Among the 75 signatories were Valerie Plame and Joseph C. Wilson; former IAEA Director General Hans Blix; Morton H. Halperin; and experts from the Brookings Institution, the Stimson Center, and other think tanks.   Am 3. In September, an open letter to Obama was published, signed by 56 people, criticizing the JCPOA as “unverifiable.” The letter states: “Guided by our experience with U.S. and foreign nuclear weapons programs — as well as the history and practice of arms control, non-proliferation, and intelligence affairs — we indeed believe that the current JCPOA is a very bad agreement.”  Among the signatories was Boykin; Bolton; former CIA Director James Woolsey, former National Security Advisor Robert McFarlane; Paula A. DeSutter, former Under Secretary of State for Audit, Compliance and Implementation; various former ACDA officials; and former President and Ceo of Sandia National Laboratories, C.
Paul Robinson.  The Jewish-American community was divided over the agreement. Revealing the existence of an underground enrichment facility at Fordow near Qom, President Barack Obama said, “Iran`s decision to build another nuclear facility without notifying the IAEA poses a direct challenge to the basic compact at the heart of the non-proliferation regime.”  Israel has threatened military action against Iran.  The Iran nuclear deal, officially known as the Joint Comprehensive Plan of Action (JCPOA), is a historic agreement reached in July 2015 between Iran and several world powers, including the United States. On its terms, Iran agreed to dismantle much of its nuclear program and open its facilities to deeper international inspections in exchange for billions of dollars in sanctions relief. On the 13th. In August, retired Senators Carl Levin of Michigan, a Democrat, and John Warner of Virginia, a Republican, published an editorial in Politico in support of the deal, “Why Hawks Should Also Support the Iran Deal.”  Levin and Warner, both former chairmen of the Senate Armed Services Committee, argued that “if we reject the deal, we risk isolating ourselves and undermining our ability to assemble the strongest possible coalition to stop Iran” if military action was needed in the future.  Levin and Warner wrote, “The agreement on the table is in many ways a strong agreement, and it leaves in place the robust deterrence and credibility of a military option. We urge our former colleagues not to take measures that would undermine the deterrent value of a coalition that participates in a military option and could support it. The failure of the United States to accede to the agreement would have this effect.
 On August 14, retired Senators Richard Lugar of Indiana, a Republican, and J. . . .