I fully understand where you are coming from but I always felt the suggestion was that Iran could close the strait not that I buy that either. To be fair I also do not buy into your suggestions that they are a peaceful people and would leave everyone alone if we left them alone. I also do not buy into the idea of a preemptive strike or even trade sanctions on the people of Iran which I would feel confident in saying that neither do you.
I do. I feel that your position is that it does not matter and my position is that it could matter but possibly couldn't. I know that seems to be a very odd position(I know laugh away I do take odd positions) but from my view we as a nation are fairly safe from an attack with origins Iranian in nature. As an isolationist it would not matter one way or the other which report you believed as they have no delivery system to attack this Country so that would end all discussions. We do however live in a world where our nation has entered into alliances with other nations. In the real world it matters to me if Iran is developing a nuclear weapon as I believe I and our nations should honor our commitments. The use of an Iranian nuclear weapon on Israel (or Iraq)will no doubt pull our nation into another war no matter whom the President is. I feel and this is my opinion based solely on my limited education and experience that given the correct opportunity and environment that not only would Iran attack Israel(and possibly Iraq) that Israel(and possibly Iraq) would attack Iran. If it takes our nation "puffing up our chests" to avoid war I see no real downside as we would be dragged in no matter what when it really comes down to it and war is something that should be avoided if reasonably possible.
You were doing so well and then here comes the isolationist fallacy!