The Houthi rebels in Yemen have threatened to attack the Dubai Expo nearly two weeks after they fired rockets at Abu Dhabi. In a tweet directed to the UAE, Houthi military spokesperson Yahya Saree hinted that the next attack on the UAE may take place at the Dubai Expo. “Expo! You may not win with us, and we advise that you change your location,” he tweeted. The undersecretary of the Houthis’ information ministry, Nasr Al-Din Amer, tweeted that their forces “have what is worth displaying at the Dubai exhibition,” referring to the ballistic missiles that the group claims to have manufactured and…