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.

Ukraine's plans to withdraw its troops from Crimea, which as we reported were announced Wednesday, have apparently been complicated by the issue of whether they will be allowed to take their weapons and other equipment with them.

This post is being updated.

Satellite images showing objects floating in the Indian Ocean have focused the search for Malaysia Airlines Flight 370 and the 239 people who were on board to an area about 1,500 miles southwest of Perth, Australia.

A year-long review of the Boeing 787, which experienced problems such as fuel leaks and a battery fire, has concluded that the plane is safe.

The Federal Aviation Administration reported Wednesday that a review team believes the aircraft, which Boeing calls the Dreamliner, "was soundly designed, met its intended safety level, and that the manufacturer and the FAA had effective processes in place to identify and correct issues that emerged before and after certification."

The nation's "first basketball fan" has Michigan State winning it all in this year's NCAA Division I men's basketball championship.

President Obama filled out his brackets for ESPN again this year. The sports network aired the president's pre-recorded appearance earlier today.

Why Michigan State?

As the search for Malaysia Airlines Flight 370 and the 239 people on board has continued over the past 12 days, there have been many reminders about the fate of Air France Flight 447.

Updated at 10:30 a.m. ET.

Saying that "Toyota intentionally concealed information" and misled the public about the danger that some of its vehicles might suddenly accelerate, Attorney Gen. Eric Holder announced Wednesday that the automaker is being fined $1.2 billion for not being forthcoming after car owners started to complain in 2009.

This post was last updated at 4:50 p.m.

A day after Russia claimed Crimea as its own, Ukraine's security chief said they were drawing up plans to withdraw troops and their families from the area.

The BBC reports Andriy Parubiy said during a press conference that Ukraine wanted to move the troops "quickly and efficiently" to mainland Ukraine and that they would also ask the United Nations to declare Crimea a demilitarized zone.

Twelve days into the mystery of what happened to Malaysia Airlines Flight 370 and the 239 people on board, more clues seem to raise only more questions.

The latest news about the investigation and search for the plane includes:

Two people were killed and one was critically injured when a KOMO News helicopter crashed and burned Tuesday near Seattle's Space Needle, the station reports.

This post was updated at 4:09 p.m. ET.

Old wrongs were righted Tuesday afternoon, as The Associated Press says, when President Obama awarded the Medal of Honor to 24 Army veterans.

The search continues for Malaysia Airlines Flight 370 and the 239 people on board. They disappeared on March 8 when the jet apparently turned west while over the Gulf of Thailand. It was on a flight that should have taken it from Kuala Lumpur north to Beijing.

Now, a search that stretches far to the south in the Indian Ocean to far to the north in Central Asia is underway. The area covers more than 3 million square miles.

Tuesday's headlines help highlight the latest developments:

We updated this post as Russian President Vladimir Putin spoke and other leaders reacted.

Wasting no time and showing no sign that he's concerned about Western objections or economic sanctions, Russian President Vladimir Putin annexed Crimea on Tuesday.

Already in the news for a recall involving 1.6 million small vehicles with faulty ignition switches, General Motors on Monday added 1.2 million SUVs and nearly 400,000 other vehicles to its list of models with problems that need fixing.

The new recalls, which GM has listed here:

Hoping to cut down on air pollution that in recent days has reached dangerous levels, city officials in Paris on Monday began trying to cut automobile emissions by enforcing an odd-even system of traffic rules.

For the most part, only cars with odd-numbered license plates could be on the rues et boulevards Monday (since it's the 17th of March). On Tuesday, the city's streets were to be open only to cars with even-numbered plates.

We're updating this post as new information comes in.

There's still no sign of Malaysia Airlines Flight 370 or the 239 people on board.

The plane went missing March 8, less than an hour after taking off from Kuala Lumpur on what was supposed to be about a six-hour flight to Beijing.

Updated at 3:10 p.m. ET.

Russia has officially recognized Crimea as a sovereign independent state, after President Vladimir Putin signed a decree to that effect late Monday, according to a release from the Kremlin. The decree takes effect immediately, naming "the Republic of Crimea, in which the city of Sevastopol has a special status."

Walter Williams, the 78-year-old man from Mississippi who two weeks ago "came back to life once he was put on an embalming table," has died.

This post has been updated.

Update at 12:45 ET: Russian Foreign Minister Sergei Lavrov and U.S. Secretary of State John Kerry came away from talks Friday in London saying they had not come any closer to an agreement about how to end the crisis in Ukraine.

Lavrov told reporters after the two men met that Russia intends to "respect the choice of the Crimean people" — who will vote Sunday on whether to join the Russian Federation. That was a sign that Russia may indeed move to annex the region if Crimeans indicate that's their wish.

Update at 10:20 a.m. ET: After Flight MH370 Disappeared, It Kept Telling Satellites 'I'm Awake':

Communications satellites continued to receive signals from the missing Malaysia Airlines plane for at least 5 1/2 hours after it disappeared over the Gulf of Thailand, a source familiar with the investigation tells NPR's Frank Langfitt.

Frank, reporting from Shanghai, writes that:

"Flight MH370's last known communication came after 1 o'clock last Saturday morning, local time, according to Malaysian officials.

Among the latest developments related to the crisis in Ukraine:

This post is being updated.

Just a few hours after a stunning report from The Wall Street Journal — headlined "U.S. Investigators Suspect Missing Airplane Flew On For Hours" — the Malaysian officials in charge of the investigation say that story's central premise isn't true.

The nation's entire power grid could be blacked out for months if as few as nine of the nation's 55,000 electric substations were put out of commission by saboteurs, The Wall Street Journal writes, citing a "previously unreported" study by the Federal Energy Regulatory Commission.

There were 315,000 first-time claims filed for unemployment benefits last week, the Employment and Training Administration says.

That's down 9,000 from the previous week and marks a three-month low.

So for the second straight week, there's at least modestly good news to report about the labor market.

This post was updated at 7:22 p.m. ET.

Rescue workers in New York pulled an eighth body out the smoldering rubble of two Harlem buildings that collapsed because of a gas explosion that also injured more than 70 people.

Unfortunately, according to NBC New York, not everyone has been accounted for: Crews are still looking for three people who remain missing.

This post has been updated. Click here to jump to that news.

Revelry turned to horror early Thursday "after a car plowed through South by Southwest crowds in Downtown Austin," KUT reports.

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