A medical breakthrough in the fight against pancreatic cancer is showing promising results after decades of research. The experimental drug, taken once a day, extends patients' lives by slowing the progression of one of the deadliest cancers. Dr. Rachna Shroff, associate director of clinical investigations at the University of Arizona Comprehensive Cancer Center, joins Stephanie Sy for more.

Scientists across the country are expressing alarm as the Trump administration dismantles another tool for understanding how the planet is changing. More than 900 deep-sea ocean sensors will be pulled out of the Pacific and Atlantic oceans near Washington, Oregon, Alaska, North Carolina and Greenland. Researchers say these are critical ocean observation tools. William Brangham explains.

The countdown is on to the start of the World Cup. The tournament is the biggest in the event's history, with 48 teams competing across the United States, Canada and Mexico. But organizers have faced criticism over ticket prices and geopolitical tensions have complicated travel for some teams and their supporters. Geoff Bennett discussed more with Roger Bennett of Men in Blazers.