Mahmoud Zahar, the Hamas leader, issued a warning this week to Jewish parents: Your children, he said, are targets:

"They have legitimised the murder of their own children by killing the children of Palestine," Mahmoud Zahar said in a televised broadcast recorded at a secret location. "They have legitimised the killing of their people all over the world by killing our people."

Put aside Zahar's chutzpah -- Hamas has been happily killing Jewish children for years. What's important is that he is making an explicit plea to jihadists everywhere to take matters into their own hands and kill Jews.  Any Jewish school or synagogue or JCC anywhere in the world that doesn't take this seriously is beyond negligent. This is not a time for panic, just preparation.

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