What was the most shocking thing about the killings in Bnei Brak Tuesday night? Five innocent people executed in a public street, as in Toulouse? The joyful celebrations in East Jerusalem? The deafening silence of too many political figures in France and, as I write, of large segments of the international community, where the preferred response is to look away? The hate for Israel, the anti-Zionism, as virulent as ever, including in the mouths of certain commentators, even though everyone knows that those sentiments are the new face of anti-Semitism? All of that is true, yes. Alas, yes.  But at the same time there was the 30-year-old Arab Israeli policeman, Amir Houri, who threw himself on the Palestinian terrorist, Dia…