Which worked very slowly and unreliably. It's about stretching extremes.

Today with Internet connectivity crimes are more likely to be seen, but so is propaganda from the perpetrators.

Now they've removed the former and preserved the latter.

Another extreme is that 100 years ago it was easier for witnesses to somehow get out, and today one can virtually track every inch of the perimeter and prevent attempts with precision munitions.

Which is why I don't think saying Israeli special services didn't somehow "miss" the attack or "fail" is promoting a conspiracy theory. They are led by people capable of thinking inside that logic and they are confident that they can contain the consequences as they already have.

This wouldn't be the first time of such a provocation in well-established history, and even in modern history. It's just that people usually easily forget the details of how wars start (Archduke Franz-Ferdinand's murder for most of the world or 22 June 1941 for ex-USSR etc would seem notorious exceptions, but they are really not, nobody except historians remembers the context of preceding and following days).