If you were to ask Elon Musk or President-elect Donald Trump for their thoughts on Luton, you’d imagine both would likely stare at you with blank faces. Actually, it might register slightly more with Musk. His private jet once touched down at Luton Airport. In the past few days, though, the name of Luton’s most infamous export – who once won an apprenticeship to that very airport, in fact – has been on the lips of some of the incoming president’s closest advisers and supporters. In the 20 years since Tommy Robinson’s first prison stint (for assaulting an off-duty police...