Here’s the same campaign event at another angle: http://www.youtube.com/watch?v=W3x-OvhIwig
The full footage is even worse because it shows the full context and he explicitly states he’s not kidding. These are from his 2012 campaign.
I watched the video you provided a link, and am trying to understand what Newt said that upsets you. If you are taking his hypothetical as a statement of fact you have a problem. He said “think about it”. He wasn’t even suggesting an actual tactic, but making an analogy.