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Robert Krulwich works on radio, podcasts, video, the blogosphere. He has been called "the most inventive network reporter in television" by TV Guide.
Krulwich is a Science Correspondent for NPR. His NPR blog, "Krulwich Wonders" features drawings, cartoons and videos that illustrate hard-to-see concepts in science.
He is the co-host of Radiolab, a nationally distributed radio/podcast series that explores new developments in science for people who are curious but not usually drawn to science shows. "There's nothing like it on the radio," says Ira Glass of This American Life, "It's a act of crazy genius." Radiolab won a Peabody Award in 2011.
David Welna is NPR's national security correspondent.
Having previously covered Congress over a 13-year period starting in 2001, Welna reported extensively on matters related to national security. He covered the debates on Capitol Hill over authorizing the use of military force prior to the wars in Afghanistan and Iraq, as well as the expansion of government surveillance practices arising from Congress' approval of the USA Patriot Act. Welna also reported on congressional probes into the use of torture by U.S. officials interrogating terrorism suspects. He also traveled with Defense Secretary Chuck Hagel to Afghanistan on the Pentagon chief's first overseas trip in that post.