Chain of errors led to U.S. bombing of Afghan hospital

Clip: 4/29/2016 | 8m 43s | Hari Sreenivasan takes an in-depth look at the series of errors with Jamie McIntyre. (8m 43s)

GOP candidates jockey for delegate support in Virginia

Clip: 4/29/2016 | 6m 8s | In Virginia, Trump may have won the primary, but that was just the first step. (6m 8s)

Honoring the bison as America’s national mammal

Clip: 4/29/2016 | 1m 13s | Legislation passed designating the American bison as the country’s national mammal. (1m 13s)

Preparing for survival mode on a hike across the Silk Road

Clip: 4/29/2016 | 6m 17s | Pulitzer-winning journalist Paul Salopek embarked on a decade-long walk around the world. (6m 17s)

Remixing a musical that brought new sounds and moves

Clip: 4/29/2016 | 6m 5s | There's a new "Shuffle Along," a new musical about the original, starring Audra McDonald. (6m 5s)

Teen birthrate reaches all-time low, a CDC report says

Clip: 4/29/2016 | 2m 55s | Teen birth rate reaches all-time low with the steepest drop among minorities, CDC says. (2m 55s)