Mark Memmott

Mark Memmott is NPR's supervising senior editor for Standards & Practices. In that role, he's a resource for NPR's journalists – helping them raise the right questions as they do their work and uphold the organization's standards.

As the NPR Ethics Handbook states, the Standards & Practices editor is "charged with cultivating an ethical culture throughout our news operation. This means he or she coordinates regular training and discussion on how we apply our principles and monitors our decision-making practices to ensure we're living up to our standards."

Before becoming Standards & Practices editor, Memmott was one of the hosts of NPR's "The Two-Way" news blog, which he helped to launch when he came to NPR in 2009. It focuses on breaking news, analysis, and the most compelling stories being reported by NPR News and other news media.

Prior to joining NPR, Memmott worked for nearly 25 years as a reporter and editor at USA Today. He focused on a range of coverage from politics, foreign affairs, economics, and the media. He reported from places across the United States and the world, including half a dozen trips to Afghanistan in 2002-2003.

During his time at USA Today, Memmott, helped launch and lead three USAToday.com news blogs: "On Deadline," "The Oval" and "On Politics," the site's 2008 presidential campaign blog.

While this week's super-cold conditions across much of the nation are fascinating and fun for many of us, there is a far more serious side to the story.

Saying she is "devastated" to have to miss the competition, Team USA's best-known and most dominant Alpine skier said Tuesday that she will not be competing in next month's Winter Olympics.

Here's what Linsey Vonn posted on her Facebook page:

Yes, it's going to be awfully cold again Tuesday for 150 million or so Americans.

But if below-zero temperatures aren't to your liking, take heart:

"Bitterly cold air over the eastern two-thirds of the country will slowly moderate through Wednesday," the National Weather Service says.

Florida State and Auburn put on a show Monday night with a college football championship game that went down to the wire and ended with Heisman Trophy-winning quarterback Jameis Winston throwing a touchdown pass with just 13 seconds to go to bring Florida State the crown.

At one point, the Seminoles were behind by 18 points.

The final score: Florida State 34, Auburn 31.

There are obviously many things that could be said about Monday night's Bowl Championship Series game between No. 1 Florida State and No. 2 Auburn, starting with this:

The Pennsylvania woman known as "Jihad Jane" has been sentenced to 10 years in prison for her role in a failed al-Qaida plot to kill a Swedish artist.

Reuters writes that "Colleen R. LaRose, 50, could have received a life sentence [but] has given authorities significant help in other terrorism cases since her 2009 arrest, prosecutors said."

A photograph published Sunday by USA Today along with a story about the frigid weather sweeping across much of the nation led to the discovery of a man from western New York state who had been missing since New Year's Day.

It's hard to imagine a much more dramatic weekend of NFL playoff games.

There was the big comeback by the Indianapolis Colts, who had fallen 28 points behind the Kansas City Chiefs.

Indy bounced back to win a 45-44 thriller.

The game included arguably the most amazing play of the weekend: Colts quarterback Andrew Luck's touchdown late in the fourth quarter when he picked up a ball that had bounced off a teammate's shoulder. Luck dove toward the end zone and managed to just stretch across the goal line.

One weather map tells the story.

Check out the National Weather Service's map of the Lower 48 for Monday night. If you need to know just how much of the nation's going to be freezing (or well below!), it offers a bone-chilling picture. Anywhere in the blue-to-purple shades is going to be cold — and that's before accounting for wind chills.

What is the Weather Service forecasting?

10 a.m. ET: Click here for an update.

Former Vice President Dick Cheney's daughter Liz is ending her primary challenge to Republican Sen. Mike Enzi of Wyoming.

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