On the Line – Norah O'Donnell reports on the financial impact of the COVID-19 pandemic on automakers Ford and GM, and their transformation from making cars to making ventilators and other medical supplies. Outbreak Science – Mapping technologies driven by artificial intelligence are helping airlines, health officials, and governments to fight the COVID-19 pandemic. Bill Whitaker reports on the new data gathering methods that point to the future of contagion mapping. The Unseen Enemy – The COVID-19 pandemic is testing the U.S. military readiness to fight, making it cope with a new and potent enemy. The Army was forced to suspend taking in new recruits until it overhauled basic training, major exercises were canceled, and a front-line aircraft carrier was sidelined. David Martin reports.