"Marching Into History, Episode 1," BBC Documentary Archive, November 21, 2010.

"Marching Into History, Episode 2," BBC Documentary Archive, November 28, 2010.

  "Malaria: The 500,000-Year-Old 'Fever' That Won't Die," Fresh Air, WHYY, July 20, 2010.

  "The Virtual Revolution: The Great Levelling?," BBC Documentary Archive, February 2, 2010.

  "The Virtual Revolution: Enemy Of The State," BBC Documentary Archive, March 1, 2010.

  "The Virtual Revolution: The Cost Of Free," BBC Documentary Archive, March 8, 2010.

  "The Virtual Revolution: Homo Interneticus," BBC Documentary Archive, March 15, 2010.

"Foreign Correspondent Ryszard Kapuscinski," Fresh Air, WHYY, January 26, 2007.

  "Call That Justice," BBC Documentary Archive, October 2006:  An in-depth study of children's rights in justice systems around the world.

  "Diamonds -- How They Became So Precious," Worldview, July 6, 2006.

"A New History Of The Cold War," Talk Of The Nation, February 8, 2006.

"Peter Singer: 'Children At War,'" Fresh Air, WHYY, January 12, 2005.

"Surviving Torture," Inside Out, WBUR, March 2001.