Outbreaks among inmates are all but inevitable. Efforts at prison reform that were already under way will get a boost, because now they will save lives. We examine the international variation in what are considered “essential industries” and “key workers”. And, what our editors and correspondents are doing to pass the time in lockdown. 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