. >> i'd like to echo senator cantwell, even though she's not the room, earlier statements. i think everybody's getting a little too over focused on the drone technology. in terms of the unmanned system, i think this room will be gathered again in a similar fashion very soon over the car technologies. unmanned cars are going to have cameras inside the car filming the car filming you, all of this will be potentially hackable to anybody external to the car. we talk about unmanned vehicle techs enologies, it's air but grounded technologies as well. so i think a lot of those same apply toe going to both domains. >> i appreciate -- i know my time is up. to me obviously this is an area we need to weigh in on and make sure that we have some clear rules here because of all are at stake,that both within the constitution and also safety issues, etc. it's really challenging. because if we're looking at a crop sprayer, we may have environmental issues. if we're looking at an issue of really surveillance technology, then we have other issues, maybe perhaps fourth amendment, other issues.