If the United States can prevent Iran 's dangerous regime from achieving nuclear weapons capability -- and not just in the short term ; if it can prevent an arms race in the region , and it can do so without military action , then the Geneva deal will have proved a triumph . Frida Ghitis : Whether Iran deal a breakthrough or disaster depends on next 6 months . She says if deal is extended beyond then , it will trigger chain of events Obama wo n't want . She says Arab Persian Gulf nations threatened by prospect of Iran nukes . The Associated Press contributed to this report. If U.S. can bring deal to a final resolution , it can forestall regional arms race .
Frida Ghitis : Whether Iran deal a breakthrough or disaster depends on next 6 months . She says if deal is extended beyond then , it will trigger chain of events Obama wo n't want . She says Arab Persian Gulf nations threatened by prospect of Iran nukes . The Associated Press contributed to this report. If U.S. can bring deal to a final resolution , it can forestall regional arms race .