uncertainty. with putin, we see none of that. we know he's lying about his soldiers. he's trained those soldiers. he's in there with a huge presence, thousands of soldiers. he's saying those aren't his soldiers. we know he's lying but we're not seeing those nonverbal tells. that makes him a very scary leader. here's a guy that is so controlled with lying. why is that, joe? powerful liars literally focus on the rewards, not the consequences. powerful liars have a decrease this that stress hormone. a powerful liar has that decrease and this increase in happiness. they are so good, when one lie doesn't work, oh, you misunderstood me. what i meant to say was this. they have an increase in their cognitive function. putin is a pro at it. it makes him a very dangerous threat. >> all right.