ricin letters

Department of Defense personnel screen mail as it arrives at a U.S. government facility in Washington, D.C., earlier this week after letters received at the Pentagon were suspected of containing deadly ricin.

National

FBI Makes 'Ricin Case' Arrest After Man Sends Castor Seeds To Pentagon

2:03am October 04, 2018

by Emily Sullivan

The seeds, which are used to make ricin but are not dangerous by themselves, tested positive in a screening center for hazardous substances.