The article explains the plan:
Israeli security sources, citing information acquired in interrogations of captured brigands, described a scenario under which hundreds of heavily armed Hamas fighters would have spilled out into Israel in the dead of night and within 10 minutes been positioned to infiltrate essentially all Israeli communities surrounding the Gaza Strip. Waiting then in hiding until schools and kindergartens were occupied, the terrorists would then attempt to kill the children first, and then kill and kidnap as many Israelis as possible. The plot was set to take place during Jewish New Year, on September 24.
…Israeli military officials reported that the tunnels are stocked with tranquilizers, handcuffs, syringes, ropes and other materials used for subduing abductees, civilians and soldiers. The tunnels also had fantastic quantities of explosives and additional military materiel meant to be used in the up-coming mega attack. Much of these explosives had already been placed underneath Israeli kindergartens. Some of these tunnels were as deep as 30 meters underground.
The italics are mine. We are not dealing with civilized people. The really bad news here is that the technology and strategy connected to these tunnels is also appearing at the United States’ southern border. This is not Israel’s war–this is the war for Western Civilization.