Why Didn't Hamas Build Bomb Shelters?

(Arab News-Saudi Arabia) Abdulateef Al-Mulhim - Why was Hamas successful in spreading a sophisticated network of tunnels and failed to build simple bomb shelters if they knew there would be armed conflicts? Is Hamas willing to sacrifice Palestinians to get more Arab and foreign financial aid? Is the attack from Gaza planned by the Iranians to take some of the pressure off Bashar Assad?