Self-driving cars are everywhere in San Francisco. Some opponents are fighting back by using traffic cones to disable the robo-taxis.

Families using traffic cones to reserve parking spaces outside their homes have been threatened with jail time. Neighbours living on Maes yr Afon in Aberystwyth struggle to park near their homes ...

From fist fights to shootings, Philadelphia police are warning city residents and visitors to stop using traffic cones to save parking spots.