Atrocities happen on this scale when they are permitted to happen. The victims are trusting that their government will protect them, I understand the media is reporting that Egypt sent some form of warning to be aware that Hamas was planning something within Gaza. Condalizard Rice was warned about plans of a using an American passenger plane as a weapon against the USA. Both incidents was a benefit for an agenda , to use the military against a foe when the citizens would not approve of a plan. These tragedies gave them a reason.