The blue screen of death

Nearly every economic sector relies on secure technology networks: retailers, airlines, hospitals and more. After a faulty software update by cybersecurity giant CrowdStrike, businesses across the globe came screeching to a halt, dragging customers with them. In this episode, the tech firm behind today’s maddening “blue screen of death.” Plus: why the Federal Reserve plans communication blackouts, a former delivery driver remembers using chickens to mark her routes, and industry upheaval threatens an Alaskan fishing community.