It is called "Do you feel safer now?". It is from the Kucinich campaign. I am a Dean supporter but I found the link on Democratic Underground and thought that it makes its case undeniably and graphically clear against Bush's war.
Warning: The video is extremely graphic and is certainly in my opinion not suitable for children. Also, you will need flash to view the video.
Here is the link: http://www.kucinich.us/animation-new.php