It probably is the first time.
Whether it is or isn't, he should have done that a long time ago
Why ?
So that the world equates the violence in Israel with the ISIS terrorist attacks all over the world. Don't you think its funny that Bibi said that the attack was copying the attacks in Europe? The first attacks of this kind definitely happened in Israel
I don't think it'll make any difference. Israel is always judged on a different scale and looked at with a different lens.