This morning’s Observer column.

'Scorpions', says Wikipedia, 'are eight-legged venomous arachnids. They have a long body with an extended tail with a sting.' Staff of the Internet Watch Foundation (IWF), the self-appointed monitor of 'child sexual abuse content hosted worldwide' and of 'criminally obscene and incitement to racial hatred content hosted in the UK', may well find themselves in rueful agreement about the sting. Except that what they've discovered is that Wikipedia also has one.

Pause for a review of recent events…