Pentagon press sec. John Kirby gets emotional over Ukraine images

"It's difficult to look at some of the images and imagine that any well-thinking, serious mature leader would do that," he said. SUBSCRIBE to ABC News: https://bit.ly/2vZb6yP WATCH MORE on http://abcnews.go.com/ LIKE ABC News on FACEBOOK: https://www.facebook.com/abcnews FOLLOW ABC News on TWITTER: https://twitter.com/abc #ABCNews