Category Archives: Ricin

Ricin: A Threat Yes But Not Often Fatal

Ricin was found this week on letters at two separate prison mailrooms in California.  Ricin, naturally found in castor beans, is extremely toxic and easily refined into the deadly poison.  This toxin has been used in warfare, although some applications violated ethical conventions, and assassinations since World War One. How did ricin get into two […]

Ricin detected in mail sent to Pentagon

Two pieces of mail delivered to the Pentagon mail facility on Monday have initially tested positive for ricin, according to a US defense official. The two suspicious envelopes were addressed to Secretary of Defense James Mattis and to Chief of Naval Operations, Admiral John Richardson, the official told CNN. The mail facility is in a […]