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.
David Kestenbaum is a correspondent for NPR, covering science, energy issues and, most recently, the global economy for NPR's multimedia project Planet Money. David has been a science correspondent for NPR since 1999. He came to journalism the usual way — by getting a Ph.D. in physics first.
In his years at NPR, David has covered science's discoveries and its darker side, including the Northeast blackout, the anthrax attacks and the collapse of the New Orleans levees. He has also reported on energy issues, particularly nuclear and climate change.
David has won awards from the American Association for the Advancement of Science, the American Physical Society and the Institute of Electrical and Electronics Engineers.