Geraldo Rivera of the Fox News Channel once described David Folkenflik as "a really weak-kneed, backstabbing, sweaty-palmed reporter." Others have been kinder. The Columbia Journalism Review, for example, gave him a "laurel" for his reporting that immediately led the U.S. military to institute safety measures for journalists in Baghdad.

Folkenflik is NPR's media correspondent based in New York City. His stories are broadcast on NPR's newsmagazines and shows, including All Things Considered, Morning Edition and Talk of the Nation. His reports offer insight into the operation of the media amid tectonic shifts in the industry and cast light on figures who help shape the way the news business works. NPR's listeners were first to learn how the corporate owners of the glossy magazine GQ sought to smother distribution of its provocative story about Russian Premier Vladimir Putin. They also found out, amid the sexual abuse crisis in the Catholic church, how a small, liberal Catholic weekly based in Kansas City had been documenting allegations of abuse by priests for a generation. Folkenflik provides media criticism on the air and at NPR.org on coverage of a broad array of issues — from the war in Afghanistan, to the financial crisis, to the saga of the "Balloon Boy."

Before joining NPR in 2004, Folkenflik spent more than a decade at the Baltimore Sun, where he covered higher education, Congress, and the media. He started his career at the Durham (N.C.) Herald-Sun. In 1991, Folkenflik graduted with a bachelor's degree in history from Cornell University, where he served as editor-in-chief of The Cornell Daily Sun.

A three-time winner of the Arthur Rowse Awards for Press Criticism from the National Press Club, Folkenflik won the inaugural 2002 Mongerson Award for Investigative Reporting on the News, presented by the Center for Media and Public Affairs and the University of Virginia's Center for Governmental Studies. Folkenflik's work has also been recognized with top honors from the National Headliners Club and the Society of Professional Journalists. He was the first Irik Sevin Visiting Fellow at Cornell and speaks frequently at colleges across the country. He has served as a media analyst on such television programs as CNN's Reliable Sources, ABC News' Nightline, Fox News' O'Reilly Factor, and MSNBC's Countdown with Keith Olbermann.

Melissa Block is a 28-year veteran of NPR and has been hosting All Things Considered since 2003, after nearly a decade as an NPR correspondent.

Frequently reporting from communities in the center of the news, Block was in Chengdu, China, preparing for a weeklong broadcast when a massive earthquake struck the region in May 2008. Immediately following the quake, Block, along with co-host Robert Siegel and their production team, traveled throughout Sichuan province to report extensively on the destruction and relief efforts. Their riveting coverage aired across all of NPR's programs and was carried on major news organizations around the world. In addition, the reporting was recognized with the industry's top honors including a Peabody Award, a duPont-Columbia Award, a National Headliner Award and the Society of Professional Journalists' Sigma Delta Chi Award.

Throughout her career, Block has covered major news events for NPR ranging from on-the-scene reporting from the Mississippi Gulf Coast in the days following Hurricane Katrina to a series from Texas gauging the impact of the Iraq War on the surrounding communities. Her reporting after the September 11, 2001 attacks was part of coverage that earned NPR a George Foster Peabody Award. Block's reporting from Kosovo in 1999 was cited among stories for which NPR News won an Overseas Press Club Award.

Rob Stein is a correspondent and senior editor on NPR's science desk.

In his reporting, Stein focuses on the intersection of science, health, politics, social trends, ethics, and federal science policy. He tracks genetics, stem cells, cancer research, the obesity epidemic, and other science, medical, and health policy news.

Before NPR, Stein served as The Washington Post's science editor and national health reporter for 16 years, editing and then covering stories nationally and internationally.

Earlier in his career, Stein spent about four years at NPR's science desk. Before that, he served as a science reporter for United Press International in Boston and the science editor of the international wire service in Washington.

Stein is a graduate of the University of Massachusetts in Amherst. He completed a journalism fellowship at the Harvard School of Public Health, a program in science and religion at the University of Cambridge, and a summer science writer's workshop at the Marine Biological Laboratory in Woods Hole, Mass.

David Greene is NPR's Morning Programming Host/Correspondent. In this role he is the primary substitute host for Morning Edition as well as Weekend Edition Saturday and Sunday. When he is not hosting he brings his deep reporting talents to these programs.

For two years prior to taking on his current role in 2012, Greene was an NPR foreign correspondent based in Moscow covering the region from Ukraine and the Baltics, east to Siberia. During that time he brought listeners stories as wide ranging as Chernobyl 25 years later and Beatles-singing Russian Babushkas. He spent a month in Libya reporting riveting stories in the most difficult of circumstances as NATO bombs fell on Tripoli. He was honored with the 2011 Daniel Schorr Journalism Prize from WBUR and Boston University for that coverage of the Arab Spring.

Greene's voice became familiar to NPR listeners from his four years covering the White House. To report on former President George W. Bush's second term, Greene spent hours in NPR's spacious booth in the basement of the West Wing (it's about the size of your average broom closet). He also spent time trekking across five continents, reporting on White House visits to places like Iraq, Afghanistan, Mongolia, Rwanda, Uruguay – and, of course, Crawford, Texas.

During the days following Hurricane Katrina, Greene was aboard Air Force One when President Bush flew low over the Gulf Coast and caught his first glimpse of the storm's destruction. On the ground in New Orleans, Greene brought listeners a moving interview with the late Ethel Williams, a then-74-year-old flood victim who got an unexpected visit from the president.

Greene was an integral part of NPR's coverage of the historic 2008 election, covering Hillary Clinton's campaign from start to finish, and also focusing on how racial attitudes were playing into voters' decisions. The White House Correspondents Association took special note of Greene's report on a speech by then-candidate Barack Obama, addressing the nation's racial divide. Greene was given the association's 2008 Merriman Smith award for deadline coverage of the presidency.

After President Obama took office, Greene kept one eye trained on the White House and the other eye on the road. He spent three months driving across America – with a recorder, camera and lots of caffeine – to learn how the recession was touching Americans during President Obama's first 100 days in office. The series was called "100 Days: On the Road in Troubled Times."

Before joining NPR in 2005, Greene spent nearly seven years as a newspaper reporter for the Baltimore Sun. He covered the White House during the Bush administration's first term, and wrote about an array of other topics for the paper: Why Oklahomans love the sport of cockfighting, why two Amish men in Pennsylvania were caught trafficking methamphetamine and how one woman brought Christmas back to a small town in Maryland.

Before graduating magna cum laude from Harvard in 1998 with a degree in government, Greene worked as the senior editor on the Harvard Crimson. In 2004, he was named co-volunteer of the year for Coaching for College, a Washington, D.C., program offering tutoring to inner-city youth.