Iran's nuclear program has been a cause of concern for Israel, who views its Persian neighbor as an existential threat, based on the the views expressed by the ruling regime. Iran's regime feels Israel is a threat, generally based on comments the Israeli's have made regarding the need to keep military options on the table to prevent a nuclear Iran. Sure, there have been a whole lot of cold war type actions going on recently, but the threat of all out war is such that Defense Secretary Panetta recently made explicit statements telling the Israelis not to bomb Iran. No matter how you feel about the saber-rattling between Israel and Iran, which has grown steadily over the past few years, you should know that most people think that all our military options are a bad idea. But don't take my word for it, the Oxford Research group has published a pretty comprehensive study of the potential effects of an Israeli campaign to derail Iran's nuclear program and concluded that it won't have the long-term positive outcomes to outweigh the costs. You should read it.