DefenceTalkAn envelope laced with ricin intended for the president of the United States was intercepted in April 2013 by law enforcement officials when protocols established for mail screenings revealed the threat of a biological weapon. Ricin is a highly toxic, naturally occurring protein found in the seeds of the castor oil plant. There is currently […]https://www.defencetalk.com/army-scientists-to-improve-methods-of-detecting-decontaminating-ricin-49693/