The four main roadblocks holding up self-driving cars

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SOME day soon, driverless podcars will cluster around our cities, waiting to pick us up on demand. There will be no steering wheel, no brake pedal; once seated, you can take a nap or watch a movie. This public facility will reduce traffic and carbon emissions. Not having to own a car will make transport cheaper for everyone. Stop us if you’ve heard this one before.

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Story added 12. February 2015, content source with full text you can find at link above.