Mary mentioned discomfort. That's one of the best examples. Many of us remember the discomfort of some of the locks applied to us in our early training days. After a while, we found that it was actually our own resistance that was causing the pain, and not any outside force.
Let that sink it.
Then you'll find the answer to where peace in the world lies.
I can't watch the TED talk right now (but will later, thanks for link).
Dan, can you tell me if I misunderstand you? Sounds like you are saying that if people in this world (few or many, near or far) are being abused by others, whether physically, politically, or economically, I should just try harder to not worry about it, and thus ease my discomfort about it.