Nation

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With a top Iraqi biological weapons expert reportedly in U.S. custody, U.S.-led coalition forces continue their search for evidence of biological, chemical or nuclear weapons in Iraq. Experts offer their opinions on the status of the search.

Defense Secretary Donald Rumsfeld told U.S. troops in Qatar on Monday that the conflict in Iraq marked a turning point in the history of warfare. Margaret Warner examines this change with military experts Lucian Truscott IV, James Dunnigan, Winslow Wheeler,…

U.S. soldiers fired on Iraqis at a demonstration in Fallujah after some crowd members shot at troops, U.S. officers said Tuesday. According to the Red Cross and a local hospital director, troops killed 15 people and wounded some 75 others.

Web logs, or "blogs," are personal, online journals - and one of the fastest growing trends on the Internet. Terence Smith explores the motivation behind blogging and whether blogs represent the future of journalism.