there have to be jobs we know are safe like a firefighter, a teacher, a doctor. >> you would think. at the same time, what if you develop a robot that understands how to find people and carry people and take them out? firefighters seem like they would be the first in line to be replaced because it's a dangerous job. robo cop is right there. the movie is coming out this summer. with teachers, maybe a robot doesn't replace a teacher. maybe you don't say, excuse me mr. robot. but what about a robot to amplefy technology? >> really fascinating stuff. >> we're going to have him back. up next, ari lasers in on