Ricin, contained in a package addressed to the White House, was intercepted by investigators on Saturday, the FBI said. The poison, found in castor beans, could "potentially be used as a ...

No antidote exists. The most notable case of ricin poisoning was in 1978, when a Bulgarian dissident was lethally injected with it by an operative of that country’s secret service.

Ricin is found naturally in castor beans but it takes a deliberate act to convert it into a biological weapon. Ricin can cause death within 36 to 72 hours from exposure to an amount as small as a ...

Federal employee pleads guilty to ricin possession, the US far-right roiled by Telegram founder's arrest and Trump boosts QAnon: The week in extremism ...

A screenshot of Daniel Milzman’s Facebook page before it was deleted. Daniel Milzman (COL ’16) was charged Friday afternoon with possession of a biological toxin after police found ricin in his room ...

Ricin comes from castor beans, and is produced from the 5% to 10% of residue remaining after the oil, used in laxatives and as an automotive lubricant, is extracted. Unintentional exposure to ...

Ricin is part of the waste from the beans when castor oil is made. Sometimes this is called “mash.” Less than a pinpoint can kill a human if ingested, injected or inhaled. There is no known cure.

Pascale Ferrier of Canada's Quebec province pled guilty to charges accusing her of mailing a ricin-laced letter to Donald Trump, who was president at the time of the offense.

Initial tests indicate an experimental vaccine for ricin works and is safe, raising the possibility it might one day offer protection from a poison that authorities fear could be a weapon for ...