Intelligence experts say Israel was caught completely by surprise attack by Hamas from the Gaza Strip, in part because it likely took a lot of planning with allies that the Israeli military should have discovered.
Israel, on the edge of the Arab world, is a country that is on permanent alert.
One explanation about why the deadly attack could have carried out so effectively was the Israel has been reoccupied by its own internal political strife.
Insightful piece
Excellent write-up