Artificial intelligence is reaching behind newspaper paywalls

There was big news in Canada last week—but if you were in Canada itself you may have missed it. On February 22nd it emerged that Google was blocking access to news content, in a five-week trial affecting about 4% of users in the country. The measure comes as Canada’s Senate considers a bill that would force big internet companies to pay publishers for displaying links to their stories. Google says it may simply block them instead; Canada’s government says the search engine’s actions amount to intimidation.