Hind Hassan travels to northwest Syria to investigate a recent devastating earthquake and what prevented critical humanitarian aid from getting to survivors in the region who needed it the most. Krishna Andavolu reports on rapid developments in artificial intelligence and learns why many in the tech industry worry that time is running out to uncover how these new AI systems really work - before they become too powerful to control.

• Alexis Johnson
• Suroosh Alvi
• Michael C. Moynihan