A question that the media avoid asking about the war in Israel: How could the best secret service in the world not detect such a tremendous accumulation of military hardware in Gaza? They intercepted military transfers in the past.
Also, they have a network of informers in Gaza. Thousands of Gaza residents were involved in preparations. Not all of them are fanatic terrorists. Even without getting paid, some might give a warning.
Media pundits elaborate on intelligence failures or errors in the Israeli defense tactics. A reasonable person would not buy it. It is more likely that some in Israel knew what was coming and decided not to stop it before it happened.
Who will investigate that?