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.

Until Wednesday, the 16-year-old Pennsylvania boy who's charged with multiple counts of attempted murder and aggravated assault after a stabbing attack at his high school was known as "a nice young boy," his attorney said this morning. Now the sophomore is in custody after the attack that left more than 20 people — nearly all of them fellow students — injured.

Tensions that wouldn't seem capable of rising even further are threatening to do just that with the news that Ukrainian authorities say they're ready to use force if necessary to remove pro-Russia protesters from government buildings they're occupying in eastern Ukraine.

From The Wall Street Journal:

(This post is being updated as news comes in.)

At least 20 teenagers and one adult were injured, two of them critically, Wednesday morning at Franklin Regional High School in Murrysville, Pa., when a 16-year-old fellow student attacked them with two knives.

The headlines about one of Wednesday's big stories — the release of data from 2012 about Medicare payment to doctors around the nation — are certainly serious sounding:

-- "Sliver of Medicare Doctors Get Big Share of Payouts." (The New York Times)

By routing Notre Dame 79-58 Tuesday night in Nashville, the University of Connecticut women's basketball team won its ninth NCAA championship — which means that coach Geno Auriemma is no longer tied with legendary Tennessee coach Pat Summitt for the most titles among women's coaches.

But that's not the only milestone that highlights UConn's place in the upper echelon of college basketball programs. Check this out:

Before Tuesday, only one school had won both the men's and women's Division I basketball titles in the same year.

"I'm now optimistic that we will find the aircraft, or what is left of the aircraft, in the not-too-distant future," the head of the search for Malaysia Airlines Flight 370 told reporters on Wednesday after an Australian ship detected two more pings that may be signals from the plane's black boxes.

"The Art of Leadership: A President's Personal Diplomacy" officially opens Saturday at the George W. Bush Presidential Center in Dallas.

As the nation's 43rd president says: "Who woulda thought it?"

Talking with his daughter Jenna Bush Hager during a pre-recorded interview on NBC-TV's Today show, the self-deprecating Bush says:

A little more than three months after he suffered a severe head injury while skiing in France, Formula One racing legend Michael Schumacher is experiencing "moments of consciousness and awakening" his agent says.

This post has been updated.

The nation's unemployment rate was unchanged at 6.7 percent in March, the Bureau of Labor Statistics reported Friday.

Meanwhile, there were 192,000 more jobs on public and private payrolls last month — a bit under the 200,000 or so economists had expected but still above the average growth in previous months.

As investigators try to determine why Army Spc. Ivan Lopez would open fire on his fellow soldiers at Fort Hood, Texas, stories are emerging about the harrowing minutes on the post Wednesday and what are being described as the heroic actions of the military police officer who confronted the gunman.

"A veteran Associated Press photographer was killed and an AP reporter was wounded on Friday when an Afghan policeman opened fire while they were sitting in their car in eastern Afghanistan," the wire service reports.

Federal agents, art experts and museum curators descended on the home of a 91-year-old man in central Indiana on Wednesday to take control of a huge collection of artifacts from Native American, Russian, Chinese and other cultures.

FBI Special Agent Robert Jones told reporters that the collection's cultural value "is immeasurable," reports RTV6 The Indy Channel.

There were 326,000 first-time claims filed for unemployment insurance last week, up by 16,000 from the week before, the Employment and Training Administration reported Thursday morning.

Although the number increased, claims remained at the lower end of the range they've been in for the past year and were running at a pace close to where they were before the economy sank into its latest recession in December 2007.

A picture is beginning to emerge of 34-year-old Army Spc. Ivan Lopez, who officials have said is the man who opened fire Wednesday at Fort Hood and killed at least three people and wounded another 16 before taking his own life.

The early signs indicate that while Lopez was being treated for depression or some other type of mental issue, he had shown no sign he might be a threat to either himself or others.

On the day after a deadly shooting incident on the grounds of Fort Hood, Texas, in which a gunman killed at least three people, wounded 16 and then reportedly killed himself, there was this welcome news:

Day Two of General Motors CEO Mary Barra's time testifying before Congress about safety problems with her company's cars has been highlighted by a top senator saying the company "repeatedly lied" about its problems and has fostered a "culture of cover-up."

From The Detroit News:

You won't be able to fire away at government drones — if any were to fly by — in Deer Trail, Colo.

A proposal to issue $25 drone hunting licenses was rejected Tuesday by voters in the little town about 55 miles east of Denver.

This year's Peabody Award winners for excellence in electronic media include The Race Card Project from NPR's Michele Norris.

Her project, which was featured in a series of reports on Morning Edition, invites people to distill their "thoughts, experiences or observations about race into one sentence that only has six words."

The first slice of data about job growth in March offers some hope that the U.S. labor market gained some strength:

This post will be updated as news comes in.

Here is some of the latest news from Oso, Wash., the tiny community north of Seattle that was devastated by a mudslide on March 22:

-- Death Toll At 29: Authorities say the number of confirmed fatalities as of this morning was 29. (We updated that figure at 11:15 a.m. ET.)

The extent of the damage isn't yet clear and the six deaths reported so far may be followed by news of other fatalities.

But on the morning after a massive, 8.2 magnitude earthquake off the coast of northern Chile there are sighs of relief there and in neighboring Peru.

Boston Red Sox outfielder Jonny Gomes had hoped everyone on his team would wear one of the American flag blazers he bought for them all before their visit to the White House today.

Tiger Woods' quest to win another of golf's "major" tournaments has been put on hold.

Woods announced on his website Tuesday morning that "he has undergone a successful microdiscectomy for a pinched nerve that has been hurting him for several months. The surgery was performed Monday in Park City, Utah, by neurosurgeon Dr. Charles Rich."

A shot fired by a British Army sniper at a suspected Taliban fighter in Afghanistan last December ended up killing not just the man in the marksman's sights but also five other men who were thought to be militant soldiers, The Telegraph reports.

"The head of the search for Malaysia Airlines Flight MH370 has raised the possibility that no wreckage from the passenger jet may ever be found, revealing authorities have a very poor understanding about how fast or far it traveled," The Sydney Morning Herald writes.

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