It used to be simpler. There was the Service, and there were the nation’s enemies. These changed identity every so often, depending on who’d been elected, deposed or assassinated, but by and large the boundaries were clear: you spied on your foes, kept tabs on the neutrals, and every so often got a chance to fuck up your friends in a plausibly deniable way. A bit like school, but with fewer rules. Nowadays, though, in between monitoring the nation’s phone calls and scanning the latest whistle-blower’s Twitter feed, geopolitics barely got a look-in. If asked to list the greatest threats to the
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