What can past intelligence failures tell us about why Israel was taken by suprise on October 7

The Hamas attack on Israel is being called the country’s 9/11 and represent a devastating failure of Intelligence.  How did Israeli intelligence miss the planning for this attack and underestimate the capabilities of Hamas so profoundly? 

But this is not the first time the most suffocated intelligent agencies in the world have been taken by surprise.  We take a look at some of the world’s most stunning intelligence failures throughout history.