`` I guess the tunnel was built for relatively short people , because if you stand up you 're going to hit your head , '' Blitzer said of the almost two-mile concrete corridor about 45 feet underground where he reported from Monday . Tunnels unacceptable to Gaza ; a defense tactic to Palestinians . Built to beat the Israel blockade , the tunnels now get used to launch attacks . Hamas 's Gilad Shalit describes the underground paths of CNN . Israel wants to destroy the tunnel network .
Tunnels unacceptable to Gaza ; a defense tactic to Palestinians . Built to beat the Israel blockade , the tunnels now get used to launch attacks . Hamas 's Gilad Shalit describes the underground paths of CNN . Israel wants to destroy the tunnel network .