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Mystery Gas

Russian officials are still ducking questions about the nature of the debilitating gas that their commandos used to end the Moscow theater siege. But as NPR's David Kestenbaum reports, evidence is growing that it was a powerful opiate.

Copyright 2002 NPR

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.