Joel Rose

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

ROBERT SIEGEL, HOST:

From NPR News, this is ALL THINGS CONSIDERED. I'm Robert Siegel.

Presidents Richard Nixon, Ronald Reagan, Jimmy Carter and Bill Clinton all spent Christmas at Camp David. George W. Bush celebrated the holiday there a dozen times — four times when his father was president and eight more during his own time in office.

But Donald Trump is spending the holiday at one of his own resorts, which he seems to prefer.

Trump has spent just a handful of weekends at Camp David during his first year in office. And that is raising questions about the future of the rustic presidential retreat in the Maryland woods.

Can an algorithm tell if you're a terrorist? Can it predict if you'll be a productive member of society?

U.S. immigration officials are trying to answer those questions. They hope to build an automated computer system to help determine who gets to visit or immigrate to the United States.

Immigration and Customs Enforcement, or ICE, wants to use techniques from the world of big data to screen visa applicants. The project would scour all publicly available data, including social media.

But the idea has some critics — including many tech experts — worried.

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

KELLY MCEVERS, HOST:

Copyright 2017 NPR. To see more, visit http://www.npr.org/.

MARY LOUISE KELLY, HOST:

Pages