Beyond the U.S., many countries are concerned that fake news stories could influence voters. The Czech Republic has elections later this year, and the country is so concerned about this problem that it has opened a new center against terrorism and hybrid threats. One of its key missions is to monitor social media and identify stories that it deems to be false. To talk about it, we are joined via Skype by Tomas Prouza, the Czech government state secretary for European affairs.

Oxford Economics, a consultancy, reckons replacing single market membership with a trade agreement would cost the UK between 0.75 and 3 percent of GDP, depending on how comprehensive the trade deal is and how open Britain remains to immigration. Meanwhile, the International Monetary Fund has upgraded its economic forecasts for the eurozone and the UK this year, but said British growth would slow down in 2018.