Nothing but 24/7 Tell Sell on every Tv in the world could stop WW3...
If my calculations are correct, the expected value of the beginning of WW3 is 34 years from now.
Combine that with the fact that one hour of Tell Sell reduces a person's IQ by .01...
Conclusion: We'll need every second of those 34 years to make everyone to dumb for war!
Or, alternatively, we could try to create International Organisations which help with peaceful conflict resolution combined with enough firepower to actually have any credibility. Like Hobbes said: Covenants without the ***** are but words. (Leviathan, can't remember the page though)