We've been inundated with reports about the almost miraculous success of Israel's 'Iron Dome' missile defense system. To my Israeli relatives, its success is an absolute article of faith. But does it actually work? A very credible ballistics expert - who played a big role debunking the early reports about the success of the Patriot Missile - says the success rate is around 5% rather than the 85% claimed by the IDF (the Israeli military). We don't come to a definitive conclusion. But this is a must-read because what we've been told may be totally wrong.