General U.S policy in Dealing with the Middle East

The United States seems to be the savior of all nations, they are not only impartial in domestic affairs, but also in international affairs. However, is the United States actaully fair in it's policy or is it baised in dealing with some areas. American Middle Eastern policy seems to be the area where most tumult arises. Some believe America is fair, while others argue American policy is influenced by resources. If one studies and analyzes American policies towards the middle east peice by peice, one can evaluate this arugument more clearly.