Elon Musk: self-driving cars could lead to a ban on human drivers

Tesla chief executive thinks switch from traditional to autonomous cars may take 20 years, and warns: 'You can't have a person driving a two-ton death machine'

Tesla chief executive Elon Musk thinks that once self-driving cars become widely used, traditional human-driven vehicles may need to be banned.

"It's too dangerous. You can't have a person driving a two-ton death machine," said Musk during an appearance at Nvidia's annual developers conference, where he discussed Tesla's ambitionsfor autonomous-cars.

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