In the suburbs of D.C., a woman fails to show up for work and is found brutally murdered.

I wonder which emergency.

We just walked in the door, and there's blood in the foyer.

For the next two decades, the case remained unsolved until new technology allowed investigators to do what had once been impossible.

A new series from ABC Audio in 2020,

Blood and Water.

Listen now, wherever you get your podcasts.

From ABC News, I'm Stephanie Officer.

Pope Leo speaking out about artificial intelligence, ABC's Tom Sufi Burrage.

A warning to us all about some of the disruptive effects of AI.

The Pope making his declaration at the Vatican this morning in his first papal encyclical, a type of open letter.

Leo setting out his desire to protect human dignity and guard against fake info and explicit content

in an age when technology threatens to replace so many jobs and other roles in society.

Pope Leo writing, quote, we are truly experiencing an eclipse of the sense of what it means to be human.

And warning of, quote, the unbridled promotion and implementation of technology at the expense of human dignity.

Southern California officials are still urgently trying to stop an overheated, pressured, and bulging

tank filled with a toxic chemical from exploding in Orange County.

ABC's Alex Stone in Los Angeles.

I'm scared because I don't know what's going to happen.

More than 50,000 residents evacuated.

Even short-term exposure to the highly volatile chemical

inside methyl methyl methyl chrylate could cause skin and eye irritation and

...