Missile Defence for Dummies

Well, actually I don't think there is anyone else who would find it that useful. I am reminded of this delightful topic by the recent failure of yet another missile test. These things can't seem to acquire a success rate of more than 50% in testing. If you read the link you'll find that this test had been postponed several times due to bad weather. Bad weather? Well, as others have pointed out, what's the chance of that being a problem? So there you go, it's a mediocre system that can't even work in ill weather. Of course the proponents will tell you that eventually it will work. One fellow on the CBC (sorry no link) stated that it was like the moon missions, that the impossible could be done. Great idea, except that unlike the moon, missile technology isn't a static target. Does anyone think that Russia and China (among others) aren't working on newer and better designs for their ballistic missiles? The result is a system that won't work and that will have prompted other nations to develop better weapons. Is it me or is this pretty much the opposite of the desired effect? Yup missile defence, it's for dummies...