As Colombia approaches presidential elections next year, the US decision to decertify the country in the war on drugs plays into the hands of its allies on the political right, writes NICK MacWILLIAM

IN the early 1990s, the Daily Mirror ran a story contrasting the squalid state of Britain’s schools under education secretary John Patten and his department’s swanky new offices in Westminster.
The new lodgings, at Sanctuary Buildings, Great Smith Street, were costing £12 million in rent, and featured an atrium with foliage hanging from the ceiling to the ground floor.
The following day, Richard Garner, the journalist behind the story, received a phone call from a DfE official.

CONRAD LANDIN offers a guide to the diverse shows at Edinburgh Art Festival