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.