Frida Ghitis : Obama , Israel on same side on Iran but are at bitter odds on nuclear negotiations . She says Israel says U.S. falling into war ; Obama says U.S. trying for peace , security . The talks with Iran present enormous challenges for Washington . She says Israel has legitimate existential concerns over nukes in Iran , wants strong deal . Ghitis : Lest they strengthen their enemies , U.S. , Israel need to defend their alliance .
Frida Ghitis : Obama , Israel on same side on Iran but are at bitter odds on nuclear negotiations . She says Israel says U.S. falling into war ; Obama says U.S. trying for peace , security . She says Israel has legitimate existential concerns over nukes in Iran , wants strong deal . Ghitis : Lest they strengthen their enemies , U.S. , Israel need to defend their alliance .