What is Ricin, lethal biological weapon that doctor held in ISIS terror plot was making?
Three men, including a doctor, who were arrested in an ISIS terror plot in Gujarat were making ricin- a lethal biological weapon- to mount a poison attack, reports said. Ricin is synthesised in endosperm of castor oil plant seeds and is extracted from waste mash leftover after oil is squeezed out. It's around 6,000x more poisonous than cyanide by weight.