The world this week
Politics Joe Biden was inaugurated as the 46th president of the United States. Despite the small crowds, limited in size because of covid-19, the event marked a sea change in political tone. Mr Biden stressed “unity” in his speech, a stark contrast to Donald Trump’s “America First” theme four years ago. Mr Biden’s first official orders overturned many of his predecessor’s edicts, such as the ban on travel from some Muslim countries, and committed America to rejoin the Paris accord on climate change. In his final hours as president Donald Trump issued a flurry of pardons. Among those on the list were Steve Bannon, a nationalist former adviser, and Anthony Levandowski, who had been convicted of stealing trade secrets from Google’s self-driving car project. Mitch McConnell, the top Republican in…