Experts examine the Clapham Junction rail crash in 1988 and the high-speed train crash in Ankara, Turkey, in 2018, and ask if these disasters could have been avoided.

Experts examine the fatal explosion at a chemical factory in Tianjin, China and at the Evangelos Florakis naval base in Cyprus. How could these disasters have been avoided?

Experts examine the devastating collapse of the Rana Plaza factory in Bangladesh and of the Morandi bridge in Genoa, Italy. How could the disasters have been avoided?

Experts examine how engineering faults allowed Hurricane Katrina to devastate New Orleans, and the collapse of the Tacoma Narrows Bridge.

Experts examine what caused Kegworth air disaster in 1989 and the tragic Concorde crash in 2000. What were the consequences and how could they have been avoided?

Experts examine what caused the Zeebrugge ferry tragedy and the Costa Concordia cruise ship disaster. What were the consequences and how could they have been avoided?

Experts examine the devastating Aberfan mine disaster in Wales and the Brumadinho dam disaster in Brazil. What were the consequences and how could they have been avoided?

Experts examine the sinking of the Titanic and the Hindenburg airship fire. How did they happen, what were the consequences and how could they have been avoided?

Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened. What were the consequences and how could they have been avoided?

Experts examine how the Deepwater Horizon oil spill and the Challenger space shuttle disaster happened. What were the consequences and how could they have been avoided?