What is ricin? Explained by Joanne Kenen - POLITICO.com

ROXIE, MS - Here are some basic facts about ricin, drawn from the Centers for Disease Control and Prevention. By JOANNE KENEN | 4/16/13 8:31 PM EDT

Read more: http://www.politico.com/story/2013/04/what-is-ricin-90182.html#ixzz2Qogg1xzG

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