In an interview Thursday morning, Defense Minister Ehud Barak sounded somewhat more pessimistic on the likelihood that the international community could stop Iran's nuclear program with sanctions than he did in an interview on American TV a day earlier. Speaking on Israel Radio, Barak said that although Israel was trying to convince members of the international community to economically isolate Iran, he did not think that effort would work. Despite his pessimism, he said, Israel needed to continue working through diplomatic channels – and avoid the alternative. On Wednesday, Barak had told American interviewer Charlie Rose that it was in...