Saudi Arabia may now be bearing the brunt of Houthi attacks that have sought to murder civilians at its airports, cripple its critical energy infrastructure, and demolish its military installations. But make no mistake, Saudi Arabia is only the Houthis’ most immediate grievance. They have the potential — and arguably the inclination — to do much worse. Their slogan, “God is Great, Death to America, Death to Israel, Cursed are the Jews, Victory to Islam,” should not be read as a rhetorical flouri