Diamonds and Rust

This week: which department should we abolish first? What comes after Platinum? And why did I spend all that time making Eurovision results maps?

Which government department did I think has done the most damage to the UK, a friend asked me at a party last weekend. (Yes, I still go to parties; yes, all my friends are nerds.)

My answer, which anyone with even the slightest familiarity with my work and opinions can probably guess, was the Home Office. Its treatment of asylum seekers and other migrant…