Here's a little bit of gossip for you: The original project for this title had to do with detecting foreign influence on US elections in social media. At about the same time, I was also applying for a visa to the United States, to give a series of talks. It later transpired that I hadn't needed the visa after all; ESTA covered all the things I had wanted to do in the United States. But as I was preparing for the visa, an attorney gave me a very stern talking-to about writing a book on the politics of the United States. The general advice is this—if I don't want trouble with US Customs and Border Patrol, I should not write or say anything on social media about American politics, and especially not write a chapter of a book on it. So, I had to hastily rewrite this chapter. The majority of methods...




















































