Fresh Air Weekend highlights some of the best interviews and reviews from past weeks, and new program elements specially paced for weekends. Our weekend show emphasizes interviews with writers, filmmakers, actors and musicians, and often includes excerpts from live in-studio concerts. This week:

The CIA has concluded that Saudi Crown Prince Mohammed bin Salman ordered the killing of outspoken Saudi journalist Jamal Khashoggi, according to media reports.

For nearly a month, the two sisters — then ages 17 and 12 — traveled by road from their home in El Salvador to the southern border of the United States. They had no parent or relatives with them on that difficult journey in the fall of 2016 — just a group of strangers and their smugglers.

Ericka and her younger sister Angeles started out in multiple cars, Ericka remembers. "In Mexico, it was buses. And we changed buses very often." (NPR is using only the sisters' middle names to protect their identity as they await a decision on their application for asylum in the U.S.)

A year ago, Facebook started using artificial intelligence to scan people's accounts for danger signs of imminent self-harm.

Facebook Global Head of Safety Antigone Davis is pleased with the results so far.

"In the very first month when we started it we had about 100 imminent response cases," which resulted in Facebook contacting local emergency responders to check on someone. But that rate quickly increased.