I agree about the first one and the second one I found to not be disgusting but rather a shocking reality of a small part of what does happen in this world we live in. These scenes represent the mentality of the terrorist and how they view life.
This guy is crazy. I heard this guy goes around to many Dance Dance Revolution tournaments to do things like this. Anyways, it would've been cool if he actually stepped on all the steps as he did all this.