The US Postal Service is one of America’s most popular and necessary public institutions. Now it is at the centre of a battle over November’s election. The growth of microfinance in Cambodia has been for the most part positive, but the pandemic is posing challenges to its sustainability. And if you want to buy a used Airbus A380, it’s a buyer’s market. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer