>> that's the saddest thing i have ever seen. paul, we have already got machines that can independently search for enemy fire and destroy incoming projectiles. this is happening whether we like it or not, right? >> absolutely. humans are better at making decisions than machines. if you have a robot general you want them to have feeling and understand. but it would be better at drafting their draft folder or e-mail. i think you have to consider both sides of the argument. >> so the pentagon directive on this, this is how it reads. the idea is to, quote, minimize failures that could lead to unintended engagements or loss of control. minimize failures. they are already saying this is going to happen, but we