Head of the National Security Council Maj.-Gen. (res.) Ya'akov Amidror said Wednesday that Israel must be ready to act against Iran should talks between the international community and Tehran fail, Israel Radio reported.Still, Amidror said that Israel praises the renewal of talks between the international community and Iran over its controversial nuclear program, which the Islamic Republic claims is for peaceful purposes.EU foreign policy chief Catherine Ashton said Tuesday that the bloc of Western nations had accepted Iran's offer to renew talks. Despite Western calls for diplomacy, Amidror told Israel Radio that it would be a mistake to wait to act until Israel loses the ability to act effectively and unilaterally to defend itself and until it would be dependent on a decision by US President Barack Obama.Amidror further added that Prime Minister Binyamin Netanyahu had not come to the US to set red-lines or to request a green light to strike Iran, as had been reported in the Israeli media.He also noted that Netanyahu and Obama had a good working relationship and that their talks had been positive. Reuters contributed to this report.The national security head added that without placing the military option on the table, the Iranians will not take such talks seriously.Iran indicated in a letter dated February 14 that it was ready for talks with the six Western powers tasked with dealing with Tehran over its nuclear program, which includes the US, Russia, China, France, Britain and Germany.