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A tense security situation continues to dog the Russian republic of Chechnya, despite efforts by Moscow to reduce the federal forces patrolling the war-torn region and encourage Chechens who have fled the country to return to their homeland.

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.