Dr. Natasha Bajema interviews Dr. Margaret Kosal about the nature of nanotechnology, how science enables invisibility cloaks, rats with night vision, and the truth about gray goo. Margaret Kosal is an Associate Professor at the Sam Nunn School of International Affairs at Georgia Tech. She has a Ph.D. in chemistry. In her research, she explores the relationships among technology, strategy, and governance and focuses on reducing the threat of weapons of mass destruction and understanding the role of emerging technologies for security.