Saudi authorities have permitted the use of lethal force to clear land for a futuristic desert city being built by dozens of Western companies, an ex-intelligence officer has told the BBC. Col Rabih Alenezi says he was ordered to evict villagers from a tribe in the Gulf state to make way for The Line, part of the Neom eco-project. One of them was subsequently shot and killed for protesting against eviction. The Saudi government and Neom management refused to comment.