MP3 here. (18:19)

Greg Gordon, an investigative reporter, has spent 33 years uncovering waste, fraud, abuse and misconduct in Washington.

Since joining McClatchy’s national staff in 2006, he has helped expose Wall Street’s role in the 2008 financial crisis, partisanship in the Justice Department and gaps in U.S. homeland security. In 2010, he and colleagues Kevin Hall and Chris Adams were honored as finalists for the Pulitzer Prize for their financial reporting, which included Gordon’s four-part series detailing Goldman Sachs’ selloff of tens of billions of dollars in securities backed by risky home mortgages while it secretly bet that a housing downturn would send the value of those securities plummeting.

In 2008, he, along with Margaret Talev and Marisa Taylor, won a McClatchy “President’s Award’’ and Scripps Howard’s Raymond Clapper Memorial Award for Washington reporting (Gordon’s second Clapper award) for exposing the Bush administration’s politicization of the Justice Department.

Earlier, Gordon spent 13 years with the Minneapolis Star Tribune and McClatchy, covering the prosecution of al-Qaida terrorist Zacarias Moussaoui and writing about asbestos in the workplace, money and politics, aviation, law enforcement and the environment. He also worked for The Detroit News’ Washington bureau and spent 18 years with United Press International, where he headed its Washington investigative team and won the 1983 Raymond Clapper award for coverage of an EPA scandal.

In 1990, he and co-author Ronald E. Cohen won Sigma Delta Chi’s gold medal for their book “Down to the Wire,” chronicling UPI’s financial collapse.

MP3 here. (23:46)

Noah Shachtman is a contributing editor at WIRED magazine, a non-resident fellow at the Brookings Institution, and the editor of the Danger Room blog.

MP3 here. (17:53)

Meryl Nass is a doctor of internal medicine and an expert on bioterrorism, biodefense, anthrax and anthrax vaccine injuries. She has testified before Congress on the subjects of Gulf War illness, anthrax vaccines and bioterrorism. Her blog and anthrax-information websites can be found at AnthraxVaccine.org.

MP3 here. (25:33)

Meryl Nass is a doctor of internal medicine and an expert on bioterrorism, biodefense, anthrax and anthrax vaccine injuries. She has testified before Congress on the subjects of Gulf War illness, anthrax vaccines and bioterrorism. Her blog and anthrax-information websites can be found at AnthraxVaccine.org.

MP3 here. (16:28)

George Maschke works as a Persian linguist and legal translator for the Iran-US Claims Tribunal at the Hague. He is co-founder of the website Antipolygraph.org.

MP3 here. (31:55)

Christopher Ketcham is a freelance reporter and writer for many venues including Antiwar.com, Harper’s, GQ, The Nation, Salon, Mother Jones, Men’s Journal, Good Magazine, Radar, and National Geographic. In 2002, he was selected as a Livingston Awards finalist for his Salon.com coverage of the 9/11 attacks in New York.

MP3 here. (19:54)

Glenn Greenwald was previously a constitutional law and civil rights litigator in New York. He is the author of the New York Times bestselling books How Would a Patriot Act? and A Tragic Legacy. His latest is Great American Hypocrites.

MP3 here. (35:50)

Glenn Greenwald was previously a constitutional law and civil rights litigator in New York. He is the author of the New York Times bestselling books How Would a Patriot Act? and A Tragic Legacy. His brand new one is Great American Hypocrites.