Production at Tesla’s Berlin factory was halted due to a power outage, German media reported Tuesday.The halt was due to a fire, suspected of being arson, in an area near the factory, Berliner Zeitung reported. Deutsche Welle later reported that left-wing extremists called the Volcano Group claimed responsibility, citing the damage from “killer cars and monster trucks.”Tesla’s factory has not been damaged, the police said. Recently, environmental activists have been protesting in a state forest near the Tes ...