That a housefly could steal the show at America’s only vice-presidential debate is telling, but a discussion with more substance than bombast was a welcome respite. Cuba is experiencing its worst food crisis in decades, and that at last may spur changes to its confused and market-distorting dual-currency system. And geopolitics sticks its beak into an enormous annual bird migration.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer
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