October 29, 2015 G. Poste. Biosecurity: Enhancing Security in an Increasingly Unsecure World. Guest Lecture: Biology and Society: Bio 311 LSA 191. Arizona State University (Oct 29, 2015) Home ยป G. Poste. Biosecurity: Enhancing Security in an Increasingly Unsecure World. Guest Lecture: Biology and Society: Bio 311 LSA 191. Arizona State University (Oct 29, 2015)