The map above is illustrative of why we need to make The War Against Oil the centerpiece of our foreign policy.
Even if you don't believe in global warming, I hope you will find the image compelling.
It's from Worldmapper, a project by the University of Sheffield in England and the University of Michigan. The idea is to scale countries to specific variables, rather than to their actual size. This gives you an idea of how they stack up on important variables.
Notice, please, how well our current foreign policy challenges conform to the details of this map. Notice how big Saudi Arabia is, how big Russia is, how big Venezuela is, how big Iran is, and how Nigeria dominates the map of Africa.