Strategic Defense: The Air Force's airborne laser program passes yet another test, proving "unproven" missile defense once again. The question is not whether we can get it to work, but whether we can afford not to.The news that Iran has enough nuclear material to build a nuclear weapon in relatively short order and is well along on missiles to deliver its nukes has put a sense of urgency on the proposed missile defense system slated for Poland and the Czech Republic. Fortunately, another answer to the threat posed by rogue regimes like Iran and North Korea has just passed a...