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British Authorities Tie Six to Deadly Poison

In London, six men of North African origin are detained in connection with the discovery of a deadly toxin. Ricin, tiny amounts of which can kill an adult, has been linked to al Qaeda and to Iraq. Hear Sarah Lyall of The New York Times and NPR's Richard Harris.

Copyright 2003 NPR

Award-winning journalist Richard Harris has reported on a wide range of topics in science, medicine and the environment since he joined NPR in 1986. In early 2014, his focus shifted from an emphasis on climate change and the environment to biomedical research.