Senior Israeli arms control expert Dr. Emily Landau says she is deeply uneasy over the unprecedented public dispute raging between Israel and the US over Iran's nuclear program.

"The very public display of the US and Israel undermining each other must cease. The only winner is Iran," she told The Jerusalem Post over the Rosh Hashana vacation.

Landau, of Tel Aviv University's Institute for National Security Studies, is particularly disturbed by the Obama Administration's refusal to set red lines over Iran's nuclear weapons program development, as well as the justifications coming out of Washington over this refusal.

Responding to comments made by US President Barak Obama and senior administration officials, who said last week that states do no set red lines, and that red lines limit their freedom of action, landau said, "States do set red lines, and Obama himself has done so twice over the past year."

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