London must remain open to the world

The capital should have its own migration system to help it to help Britain survive leaving the EU There are always exceptions. Since the nation voted to leave the European Union, the mayor of its capital city, Sadiq Khan, has declared that “London Is Open”, but he wouldn’t mind it being closed to Donald Trump. Hundreds of thousands of Londoners sympathise, judging by the map of signatories of the petition to stop the US president paying a state visit and making life difficult