In Europe, the ground is already shifting. Google's share of the search engine market there is 92 percent, according to StatCounter. But that did not stop the European Union from fining it $2.7 billion in June for putting its products above those of its rivals. A new German law that fines social networks huge sums for not taking down hate speech went into effect this month. On Tuesday, a spokesman for Prime Minister Theresa May of Britain said the government was looking carefully at the roles, responsibility and legal status of Google and Facebook, with an eye to regulating them as news publishers rather than platforms. This war, like so many wars, is going to start in Europe, said Mr. Galloway, the New York University professor.
Tech Giants, Once Seen as Saviors, Are Now Viewed as Threats