The security situation is hopeless, following violent unrest and a presidential assassination—as one family’s epic and ultimately failed attempt to leave reveals. The sum total of the missing banknotes in the world is staggering, but what is worrying is that no one seems interested in finding it all. And meeting the man who unwittingly became Sherlock Holmes’s secretary.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer
 See acast.com/privacy for privacy and opt-out information.