When the federal mask mandate on airplanes and other public transit was invalidated by a federal judge this week, I saw a tweet by fellow Bulletin writer Ian Bremmer that really ticked me off. Bremmer is a respected political scientist, an author, and a well-established public intellectual. You’ve probably seen him on television or in every major publication, from Foreign Affairs to The New York Times. He’s everywhere. I have always found him to be interesting and insightful. So, when he tweeted that he was “happy to see the end of the public transport mask mandate,” my blood pressure skyrocketed.