Israeli intelligence is among the best informed intelligence agencies in the world. It achieves this through kidnap, torture and extra judicial murder of its opponents. it's been going on for many years. Threatening captives with death and annihilation of their families if they don't talk has been used throughout history since war was 'invented'.
So I'd like to know just how much Israel knew about the October massacre before it happened. I do not believe Israel was completely unaware of the October attack prior to its execution - and it allowed it to happen - one of the reasons why Netanyahu was always fearful of any enquiry about the October attacks by the Israeli government and its supposed pretence of being 'caught out' by it.
Why would Netanyahu allow such a thing to happen? easy. For many years Netanyahu and his right-wing cronies have lusted after the 'Greater Israel'. The 'Greater Israel' has always meant ethnic cleansing with Israel intended only for Jews and the total expulsion of any ethnic non-Jewish communities living in Israel. Couldn't be simpler. That's why we are seeing the total annihilation of Gaza, it has been purposely rendered uninhabitable. Once that happens the Israeli settlers will acquire the land and Gaza will disappear becoming de facto Israel. End of problem for Israel. Next stop, the West Bank - but that will take another campaign and some years to achieve.
The cost in civilian Palestinian lives will simply not matter, the rest of the world will look on given American-Jewish influence in other countries such as the UK, Australia, and all the rest.
