There are signs that the federal government is obstructing humanitarian aid to the war-torn region of Tigray, putting millions of civilians at risk of famine. We draw lessons from Israel’s vaccine rollout to predict what still lies ahead for many countries. And what can be learned by striking a deal with Bali’s larcenous monkeys. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer