lucas tomas from fox news. slightly off topic, sir. is there any credible evidence that terrorists can use ebola as a bioagent here in the united states? >> no. >> do you have any -- want to wrap up? >> i hope this is the beginning of a robust dialogue in this country about this challenge. like i said, i don't think i have the wisdom or the technical knowledge to say here's what it ought to look like. but i see a problem that when our last government's light was blinking red in the corner of my eye, it's now blinking red in front of me and i don't want to get to a place where people will say how did we get to this we t without making -- if get to the point where we want an encryption on every device we use, we as a country need to decide that not go there as a default. >> i want to thank the director for coming in and having this son very sation. please stay in your seated as he leaves so he can get out. thank you for joining us. [applause] >> thank you. >> coming up today, a discussion about u.s. nuclear policy with alison mcfar land