That's a good point. I have a Halon Fire extinguisher... and I found out how much it cost to refill it. SO... I went out and bought a CO2.
I've seen the vid, but I don't know if it was posted before. There is a longer version showing that they had issues getting the engines running. That should have raised a flag saying something was wrong.
****EDIT****
Here's the full version
http://youtu.be/nMxzL7E3Z7s