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.

Hillary Clinton was not struck Thursday when a woman threw a shoe at the former secretary of state while she was on stage in Las Vegas giving the keynote speech at conference hosted by the Institute of Scrap Recycling Industries.

"What was that, a bat? Was that a bat?" Clinton said moments after the footwear flew by.

A highway in Northern California was turned into an inferno Thursday when a FedEx truck slammed into a charter bus full of high school students.

The California Highway Patrol says at least 10 people, including both drivers and five of the teenagers, were killed. An additional 30 or so people were injured. Those who survived escaped through smashed windows.

Breaking news on CBS-TV's Twitter feed:

"Stephen Colbert to be next host of 'The Late Show'...press release coming"

As he bled from a stab wound to his back Wednesday morning, the first thoughts that went through his mind were "will I survive, or will I die?" one of the high school students injured Wednesday in Murrysville, Pa., told reporters Thursday.

Brett Hurt was among the first of more than 20 people (most of them students) injured when a young man wielding two steak knives began stabbing and slashing at other teens.

We updated this post with a major development at 1:15 p.m. ET.

Reports that Burger King is looking to open restaurants in Crimea now that McDonald's has decided to pull out of that region were overcooked, a Burger King spokesman says.

Responding to the stories that we saw across the news media and posted about earlier today, Burger King spokesperson Bryson Thornton emailed to say that "neither Burger King Worldwide, nor any of its franchisees, have plans to open Burger King restaurants in Crimea."

There were 300,000 first-time claims for unemployment benefits filed last week, the fewest since mid-May 2007, the Employment and Training Administration reported Thursday.

Claims were down 32,000 from the week before, the agency adds.

Reuters says the news "could bolster views of an acceleration in job growth after a cold winter dampened hiring."

The pain, anguish and fear comes through as a young mother who held on to her baby boy as their Oso, Wash., home was swallowed by a mudslide on March 22 describes the harrowing ordeal.

Here's how our colleagues at Seattle's KPLU begin their story:

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.

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