Ok...
Nice animation summing up the dangers of nuclear war, and almost a nice a nice message, therefore I'm not blamming it but...
I disagree entirely with your definition of "potentially dangerous" countries. So USA, UK, India, Russia, France and Pakistan AREN'T potentially dangerous countries? And, for sake of argument, Australia IS a potentially dangerous country? Dude, ANY country with nukes is a potentially dangerous country, I don't see why any of us are exempt from that classification. We should all disarm immediately if we are to guarantee the safety of human civilisation. These weapons are a threat to humanity, you show what will happen if any country uses nukes in anger in this day and age (back in'45, it was lucky - in the loosest sense of the word - that only USA had them)... Destroy them, forget about them, now is the time for diplomacy, ending this futile stalemate and getting along as a planet through fair trade, diplomatic relationships and cultural understanding, not arms escalation, paranoid tension and media propaganda.
http://www.cnduk.org