Laurel Wamsley

Russian President Vladimir Putin says an explosion at a St. Petersburg supermarket on Wednesday was a terrorist act, and that another attack in the city had been foiled by the country's security service.

A bomb went off in a branch of the Perekrestok supermarket, wounding at least 13 shoppers in Putin's hometown, Reuters reports:

The U.K.'s Prince Harry took over editing duties for Wednesday at BBC Radio 4's Today program. And he managed to snag a rather high-profile guest: Barack Obama.

The full audio of the interview is available here for the next six days. The interview was taped in September during the Invictus Games in Toronto, an event created by Harry for wounded, injured or ill servicemen and veterans.

Since 2010, Library of Congress has been archiving every single public tweet: Yours, ours, the president's.

But today, the institution announced it will no longer archive every one of our status updates, opinion threads, and "big if true"s. As of Jan. 1, the library will only acquire tweets "on a very selective basis."

A white Christmas came to parts of the United States. But in northwest Pennsylvania, the skies really packed a wallop.

NPR education reporter Elissa Nadworny went home to Erie for the weekend and found herself in the middle of an epic snowstorm when the lake effect parked a band of snow over the city of 100,000.

The storm dumped more than 4 feet of snow in 30 hours – and it's still going.

The Trump administration said Sunday that the United Nations budget has been reduced for the coming year, and it framed any cuts as the product of U.S. negotiation.

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