All 72 deaths were "avoidable", according to the final Grenfell Tower inquiry report, which found "decades of failure" led to the tragedy.   
 
The inquiry lasted six years and concluded there was "systematic dishonesty" from cladding firms, "complacency" from governments and an "inappropriate" relationship between inspectors and those they were inspecting. 
 
Niall Paterson is joined by our science and technology editor Tom Clarke to look at the findings and recommendations of the Grenfell Tower inquiry, and how the fire was the final, fatal link in a chain of unimaginable human failure.  
 
Also, our home news correspondent Rachael Venables speaks to survivors and families of the people who died about what they want to happen next. 
     
Producers:  Emma Rae Woodhouse and Soila Apparicio 
Promotions producer: Jada-Kai Meosa John 
Editor: Wendy Parker