. >> host: catherine lotrionte. >> guest: maybe i'm a little more optimistic or hold out the hope that we're not there yet. the anniversary is very close. i think still the biggest threat, especially on an anniversary like this, is similar to 9/11, conventional terrorist attack. >> guest: so there is a classified example of a cyber attack that resulted in multiple deaths, and what we know from that we can start to assess the e effectiveness of this as a weapon. and it's not that powerful. you can hurt a few people, that's bad, of course, but i don't think you could get a 9/11. you could have more fun doing something else. you could, you know, mess up the financial system. you could turn off the electrical power. but casualties in the thousands would be difficult to achieve using cyber attack. >> host: and we are out of time, unfortunately. very quickly, jim lewis is a director of the technology and public policy program at csis. he got his ph.d. a at the university of chicago. also joining us today was catherine lotrionte who is director of the cybersecurity project at georgetown unive