Obesity campaign with a side of fries

Boris Johnson’s health drive | Scientists using Windows 7 | Macbeth | Vaccine strategy | Pigs in blankets | Face masks in winterHas Boris Johnson heard of the proposed new crackdown on obesity (Unhealthy snacks to be banned from checkouts at supermarkets in England, 28 December)? The photograph on another page in the same print edition of him surrounded by a Five Guys takeaway bag, chocolates, Coke and beer suggests otherwise.Vicky WolmuthLondon• Martin Tolley (Letters, 27 December) i