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After last week's shooting in Parkland, Fla., calls to arm teachers and school personnel have intensified. Both President Trump and the National Rifle Association argued this week that enabling school officials to shoot back could save lives and could deter potential assailants from entering a school.

Trump has clarified that he believes only those "adept" at using firearms should be armed, not all teachers.

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And now it's time for sports.

(SOUNDBITE OF MUSIC)

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To Colorado now, where two national debates - sexual harassment and guns - are colliding in the statehouse. From Denver, member station KUNC's Bente Birkeland reports.

The technology that drives science forward is forever accelerating, but the same can't be said for science communication. The basic process still holds many vestiges from its early days — that is the 17th century.

Some scientists are pressing to change that critical part of the scientific enterprise.

Here's what they're confronting: When researchers studying the biology of disease make a discovery, it typically takes nine months for them to get their results published in a journal.

Daring To Dream: A Carpenter Tries To Build A Piano In Rwanda

19 hours ago

It's Monday afternoon and Désiré Mulumeoderwa is alone in his workshop, an oasis of quiet and creativity from the parade of motorbikes and perpetual hustle outside on Kigali's streets. The mud floor is littered with planks of wood in all shapes and sizes, scraps of plastic and other discarded materials Mulumeoderwa uses in his carpentry work.

Chairs, cupboards and bed frames are in various stages of construction around the dimly-lit shop. Off in a corner by the door is a project unlike any other.

Mulumeoderwa is building an upright piano.

This week in the Russia investigations: More newcomers join Mueller's roll of honor; the feds meet with state officials on election security; and Washington starts thinking about considering some potential planning to defend the 2018 midterms.

Guilty

Justice Department special counsel Robert Mueller broke his own record this week for guilty pleas. On Tuesday, Dutch attorney Alex van der Zwaan appeared in federal court and admitted he had lied to investigators about his contacts with Donald Trump's former campaign vice chairman, Rick Gates.

American politics have always been rife with individuals who invoked the Almighty and sought divine leverage to achieve their own agendas.

Partisans on both the right and the left have revered such figures – when they agreed with their ends – and reviled them when they did not.

But it is hard to think of any clergy in any era who have ascended quite so far in the national political consciousness as Billy Graham.

Nadezhda Sergeeva of Russia has tested positive for a banned substance and has been disqualified from the Winter Olympic Games in Pyeongchang, the Court of Arbitration for Sport said Saturday.

Sergeeva was ranked 12th in the women's bobsleigh, but is now disqualified from the event and "the results obtained" by her team "at the same event are disqualified with all resulting consequences," the organization said in a statement.

With a gold medal in the snowboard parallel giant slalom, Ester Ledecka of the Czech Republic has become the first woman in Winter Olympics history to win a gold medal in two different sports at the same Olympic Games.

On Saturday she emerged victorious in the final run against Germany's Selina Joerg, finishing just 0.46 seconds ahead. Joerg took silver in the event, followed by Ramona Theresia Hofmeister, also of Germany, who took bronze.

Updated at 6:45 a.m. ET

The U.S. men's curling team made history on Saturday at the Pyeongchang Winter Olympics, playing in — and winning — the first gold medal curling game ever to feature an American team. Led by John Shuster, the U.S. broke out late to upset Sweden, which had lost only two games in South Korea coming into the final.

Updated at 9:25 p.m. ET

The White House went on lockdown for a while on Friday afternoon after a female driver struck a nearby security barrier and was "immediately apprehended" by officers, according to the Secret Service.

The agency said in a statement it has had "previous encounters" with the woman they say is 35, white and from LaVergne, Tenn. The statement said she has been charged with "numerous criminal violations," and turned over to Washington, D.C., police.

Nearly four months after their billionaire owner shut them down, local news sites Gothamist, LAist and DCist will come back to life under new ownership: public radio stations.

WNYC in New York will buy Gothamist, Southern California's KPCC will acquire LAist, and WAMU in Washington, D.C., is taking over DCist.

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