It is amazing the controversy that missile defense continues to arouse nearly 30 years after Ronald Reagan gave his famous “Star Wars” speech. Yesterday I posted an item saying that Reagan’s vision of intercepting missiles had been vindicated by the success that Israel’s Iron Dome system is having in knocking down Hamas rockets–some 300 so far. This sparked much indignation on Twitter and the blogosphere, with a graduate student named Matt Fay writing an entire blog item in reply arguing “Iron Dome Does Not Vindicate SDI,” and political scientist/blogger Robert Farley posting numerous tweets in a similar vein. They attack me for one alleged factual error and for a larger conceptual error of equating defense against Russian ICBMs, which have a range of thousands of miles, with defense against short-range Hamas rockets which can travel no more than 50 miles and often less. Let me explain in brief why I stand by my original point.
First, the supposed factual error is more an omission than a mistake. I wrote that “the U.S. West Coast is actually protected by a limited ballistic-missile defense system based primarily around satellites, sea-based Aegis and X-band radars, and Standard Missile-3 interceptors.” Fay points out I neglected to mention the ground-based interceptors located in Alaska and California. Fair enough; I should have mentioned them. But the first line of defense against missiles aimed at the U.S. remains warships equipped with Aegis radar and Standard Missile 3′s–as a quick glance at the website of the US Missile Defense Agency will confirm. In the future a new generation of SM-3′s will also be based ashore in the U.S. If North Korea were to launch a missile our way, an Aegis-equipped Navy ship would be more likely to shoot it down than one of the ground-based interceptors in the continental U.S. But they are all part of a larger system with redundancy built in to increase the chances of a successful interception.