A column in the "Wall Street Journal" cited Yigal Carmon, head of the Middle East Media Research Institute who claimed that it was the tunnels, and not the 2014 kidnapping and murder of Israeli teenagers that was the immediate cause of war in the summer of 2014. According to Carmon's reading of the situation, the tunnels gave Hamas the ability to stake a mass-casualty attack on the scale of the 2008 Islamist terror attack on the Taj Hotel in Mumbai that killed 164 people. A 5 July Israeli airstrike damaged a tunnel near Kibbutz Kerem Shalom, and a group of Hamas military inspectors were killed in an explosion at the tunnel on 6 July. According to Carmon, this may have persuaded Hamas that Israel was becoming aware of the scale of the capacity for militants to infiltrate Israel via tunnels, making a successful surprise mass-casualty attack less likely, and convincing the Hamas leadership to go to war immediately before more of the tunnels could be discovered and destroyed. Alan Dershowitz argued that the goal of the tunnels was to facilitate "mass casualties and kidnappings", citing the proximity of tunnel exits to civilian targets such as Israeli kindergartens as well as the 17 July "attempted mass casualty attack" that preceded Israel's ground incursion. Dershowitz stated: "No country should have to tolerate this breach of its sovereignty and this danger to the lives of its civilians." An editorial in the "Washington Post" described the tunnels as "using tons of concrete desperately needed for civilian housing" and also as endangering civilians because they were constructed under civilian homes in the "heavily populated Shijaiyah district" and underneath the al-Wafa Hospital. Israel describes kidnapping Israeli civilians or taking Israeli soldiers hostage as one of the primary goals of tunnel construction. The "Wall Street Journal" described an attack tunnel inspected by one of its reporters as, "designed for launching murder and kidnapping raids. The 3-mile-long tunnel was reinforced with concrete, lined with telephone wires, and included cabins unnecessary for infiltration operations but useful for holding hostages." In October 2013, according to the newspaper "Haaretz", "The IDF's working assumption (wa)s that such tunnels will be made operative whenever there is an escalation in the area, whether initiated by Hamas or by Israel, and will be used for attacks and abduction attempts. If Hamas initiates such an escalation while holding several Israeli citizens or soldiers, it would be in a much stronger position." According to the "New York Times", one tunnel contained "a kidnapping kit of tranquilizers and plastic handcuffs" to facilitate kidnapping.