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.

The pilot of an Alitalia pilot flying into New York's John F. Kennedy International Airport told controllers Monday afternoon that he had spotted "a drone aircraft" 1,500 feet high in the sky and approximately 5 miles west of the airport.

Update at 4:09 p.m. ET. A New Record:

The Dow Industrials finished in record territory today. Gaining 89 points, it closed at 14,253.77, its highest level since Oct. 9,2007.

That is, the Dow has recovered all the losses it suffered during the Great Recession.

The man who authorities want to question about Sunday's hit-and-run car crash in Brooklyn that killed a young couple and the baby that the 21-year-old pregnant mother was carrying has "a history of violence and a prior drunken driving arrest," The Associated Press writes.

Roman Catholic cardinals are in "no rush" to set the date for the start of their conclave that will choose the next pope, a Vatican spokesman told reporters Tuesday.

Rats have been a problem for many years in Tehran. As the BBC reported in 2000, officials back then launched a poison control program that they hoped would kill many of the estimated 25 million rats in the city.