“The clock is ticking,” U.S. Secretary of State John Kerry warned Iran on Friday, adding that Israel will do what is necessary to defend itself against the Islamic Republic's nuclear program. Speaking to reporters at a joint news conference with German Foreign Minister Guido Westerwelle, Kerry said that he is not optimistic that Iran's upcoming presidential election will result in any change in the country's nuclear ambitions. "I do not have high expectations that the election is going to change the fundamental calculus of Iran," Kerry said. "This is not a portfolio that is in the hands of a new...