A city in South Korea, which has the world's highest smartphone penetration rate, has installed flickering lights and laser beams at a road crossing to warn "Smartphone Zombies" to look up and drivers to slow down, in the hope of preventing accidents.
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A city in South Korea, which has the world's highest smartphone penetration rate, has installed flickering lights and laser beams at a road crossing to warn "Smartphone Zombies" to look up and drivers to slow down, in the hope of preventing accidents.