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So far, more than half of all U.S. states have legalized marijuana for medical use, and eight (plus the District of Columbia) have legalized the drug for recreational use. Varieties of cannabis available today are more potent than ever and come in many forms, including oils and leaves that can be vaped, and lots of edibles, from brownies and cookies to candies — even cannabis gummy bears.

Ben Carson, President-elect Donald Trump's choice to lead the Department of Housing and Urban Development, would not say that housing properties owned by Trump won't benefit from HUD programs at his confirmation hearing Thursday.

The former neurosurgeon and Republican presidential candidate was pressed on the matter by Democratic Sen. Elizabeth Warren, who asked Carson for assurance "that of all the housing grants he [has] the ability to bestow," not one dollar will go to benefit either the president-elect or his family.

The 3rd Armored Brigade Combat Team, 4th Infantry Division, from Fort Carson, Colo., has begun moving into Poland as part of the biggest U.S. military deployment in Europe since the end of the Cold War.

It's part of an Obama administration effort to deter perceived growing Russian aggression in Eastern Europe. The Kremlin isn't happy.

"These actions threaten our interests, our security," President Vladimir Putin's spokesman Dmitry Peskov said. "Especially as it concerns a third party building up its military presence near our borders. It's not even a European state."

The U.N. Secretary-General said today he was hopeful that peace talks on Cyprus, being held in Geneva, could lead to a breakthrough, though he cautioned that "we are not here for a quick fix."

Flanked by Turkish Cypriot leader Mustafa Akinci and Greek Cypriot leader Nicos Anastasiades, Secretary-General António Guterres said a breakthrough is what the world needs now.

It's a tough job, but somebody has to do it. NPR's Kelly McEvers talks to Mike Sutter, food critic for the San Antonio Express-News, about his "365 days of Tacos" series, in which he eats at a different taco joint every day for a year. He's done it before, in Austin, where he ate more than 1,600 tacos in 2015. But now he's moved to San Antonio, and he's finding that the taco scene there is a bit different, and in fact is tied to a cultural identity that spans back many decades.

President Obama awarded outgoing Vice President Biden the Presidential Medal of Freedom on Thursday afternoon.

Calling the former longtime Delaware senator "the best vice president America's ever had" and a "lion of American history," Obama gave his White House partner the surprise award in an emotional ceremony, initially billed as a farewell.

President-elect Donald Trump took to Twitter again Thursday morning, this time to urge his followers to "Buy L.L.Bean," and support one of his campaign backers.

"Thank you to Linda Bean of L.L.Bean for your great support and courage," he tweeted Thursday. "People will support you even more now. Buy L.L.Bean."

In the closing weeks of 2016, an explosive document was floating around in media and security circles. Reporters tried, and failed, to verify the claims it contained — that Donald Trump colluded with Russia, and the Kremlin held lurid blackmail material as leverage over Trump. Reporting on the document, which was first compiled as opposition research, was rare and carefully vague.

Six years ago, Don Cameron, the general manager of Terranova Ranch, southwest of Fresno, Calif., did something that seemed kind of crazy.

He went out to a nearby river, which was running high because of recent rains, and he opened an irrigation gate. Water rushed down a canal and flooded hundreds of acres of vineyards — even though it was wintertime. The vineyards were quiet. Nothing was growing.

"We started in February, and we flooded grapes continuously, for the most part, until May," Cameron says.

After years of hints, shots across the bow and a few gentle suggestions, the Chargers have finally done it: Owner Dean Spanos announced that the NFL team will be leaving San Diego for Los Angeles, starting nex

A poem written by a Chinese surgeon lamenting the medical effects of smog, called "I Long to Be King," is going viral on Chinese social media. Told from the perspective of lung cancer, the poem takes an apocalyptic note:

Happiness after sorrow, rainbow after rain.

I faced surgery, radiotherapy, and chemotherapy,

But continued to chase my dream,

Some would have given up, but I will be the king.

Tying a knot can be tricky. Just ask any kid struggling with shoelaces. And scientists have it even harder when they try to make knots using tiny molecules.

Now, in the journal Science, a team of chemists says it has made a huge advance — manipulating molecules to create the tightest knot ever.

Updated at 4 p.m. ET

The Justice Department's watchdog has launched a sweeping review of conduct by the FBI director and other department officials before the presidential election, following calls from Congress and members of the public.

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Maracanã Stadium has been a fixture of the Rio de Janeiro skyline for decades. Opened just in time to play host to Brazil's heartbreak in the 1950 World Cup, it underwent massive renovations to host ... well, more heartbreak for Brazilians in the 2014 World Cup.

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