Travel restrictions that are proliferating worldwide may represent an existential threat to many airlines. How long the pandemic lasts will determine how much the aviation industry is reshaped by it. We ask why the Philippines’ politics is so much more socially conservative than its populace. And the self-defence measures being developed for delivery drones. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer For information regarding your data privacy, visit acast.com/privacy