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 news blogs: "On Deadline," "The Oval" and "On Politics," the site's 2008 presidential campaign blog.

"Small, stunted individuals who would destroy instead of build" do not understand that "a bomb can't beat us," President Obama said Thursday in Boston.

His emotional vow came during an interfaith service to remember the victims of Monday's marathon bombings. It was also a service that served as a celebration of the American spirit and the bravery of the first responders, volunteers and spectators who rushed to the aid of those who were caught in the explosions.

There were 352,000 first-time claims for unemployment insurance last week, up by 4,000 from the week before, the Employment and Training Administration reports.

The "4-week moving average" that gauges the trend rose by 2,750, to 361,250.

Paul Kevin Curtis, the 45-year-old Mississippi man arrested Wednesday in connection with the possibly ricin-tainted envelopes sent to President Obama and Sen. Roger Wicker, R-Miss., is "better known to some as a celebrity impersonator," The Clarion-Ledger writes.

The Jackson, Miss., newspaper adds:

Note: We're following Friday's breaking news — that one suspect is dead and that police are searching for the other — in a new post.

Thursday's post: