JERUSALEM Israel is struggling to craft a policy that could halt drone and missile attacks by the Houthi group from Yemen.  In the past few weeks, the Houthis have focused their attacks on central Israel, especially the Tel Aviv metropolitan area, where millions of Israelis live.  Nine Israelis were hurt early Wednesday while running for shelter after a rocket fire by the Houthis. The army said the projectile was intercepted before entering Israeli airspace.  The Yemeni group says that its