Envelope tests positive for ricin at Washington mail facility

Discussion in 'News / Current Events' started by Revmitchell, Apr 16, 2013.

  1. Revmitchell

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    Feb 18, 2006
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    Washington (CNN) -- An envelope that tested positive for the deadly poison ricin was intercepted Tuesday afternoon at the U.S. Capitol's off-site mail facility in Washington, congressional and law enforcement sources tell CNN.

    After the envelope tested positive in a first routine test, it was retested two more times, each time coming up positive, the law enforcement source said. The package was then sent to a Maryland lab for further testing.

    The envelope was addressed to a U.S. senator, though the sources would not say which one.

    Ricin is a highly toxic substance derived from castor beans. As little as 500 micrograms -- an amount the size of the head of a pin -- can kill an adult. There is no specific test for exposure and no antidote once exposed.


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