Wow, we get the freaking point on world peace will never work. So stop saying the same old Bs. You don't sound all epic and cool.
In my opinion: you have to give the world what they want, as that Budhist guy said, but what does the world want? More than half of the world wants to rule the world. To have that happened, some people have to be slaughtered, others have to be smacked. *hint hint* George Bush *hint hint* But if you want to be the one that goes around asking all the assholes who rule those countries who start shit and ask them what their problem is, and what they want, you would have a cap/fist in your ass, and a bullet in your head. For those who want to rule the world, kill them, assasinate them, whatever it takes.
My point is, to obtain world peace, cattle have to be raped, [pollitical leader(s)] have to overthrow or killed, and prayers have to be answerd. (For those of you who are too lazy to read above)