Israel and the USA

Today on the news I heard that America made a request to Israel. They requested that Israel inform America before they attack Iran. Israel denied this request. I know that Iran is a threat to America. I also know that Israel and America have been good allies for a long time. I; however, think that Israel made the right choice. Although Iran is a threat to America it is an even larger threat to Israel. Israel should not limit their flexibility when it comes to a possible attack on Iran. Informing the American government that they plan to attack Iran might be followed by request not to attack or America trying to intervene on how they should attack. I don't think Israel should give America that much sovereignty. If Israel chooses to attack Iran chances are they have a good reason. I don't think informing America should be a requirement. Not only does Israel need to show some independence it also needs to to keep a level of secrecy.