National & World News

In the height of ski season this year, blades of grass and patches of dirt still dot cross country ski trails in Aspen, Colo. Conditions like this present a conundrum for professional skiers: Their livelihood relies on snow and cold temperatures, but essentials like travel and snow-making come with an environmental cost.

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MICHEL MARTIN, HOST:

Copyright 2018 NCPR. To see more, visit NCPR.

MICHEL MARTIN, HOST:

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

MICHEL MARTIN, HOST:

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

MICHEL MARTIN, HOST:

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

MICHEL MARTIN, HOST:

One day after a federal grand jury indicted more than a dozen Russians in connection with interfering in the 2016 presidential election, National Security Adviser H.R. McMaster said Saturday, "As you can see with the F.B.I. indictment, the evidence is now really incontrovertible and available in the public domain, whereas in the past it was difficult to attribute."

Thirteen people died and 15 were injured Friday night after a military helicopter carrying government officials assessing earthquake damage crashed in southern Mexico, said the Oaxaca state prosecutor's office.

Her murder triggered rioting in Pakistan and rippled the world-over, and on Saturday the man convicted in 7-year-old Zainab Ansari's death was sentenced to die four times over.

Mohammad Imran, a local man who knew Zainab's family, pleaded guilty to raping and killing the little girl, reports The Associated Press.

Her body was found on a trash heap on Jan. 9 in the city of Kasur near Lahore, four days after she was reported missing.

Prosecutors say Imran, 24, is a serial killer who has also admitted to killing several other children.

In the brave new world of synthetic biology, scientists can now brew up viruses from scratch using the tools of DNA technology.

The latest such feat, published last month, involves horsepox, a cousin of the feared virus that causes smallpox in people. Critics charge that making horsepox in the lab has endangered the public by basically revealing the recipe for how any lab could manufacture smallpox to use as a bioweapon.

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