I seriously doubt that America would ever be in a position to rule very large portions of the world. We have trouble controlling one of the countries, imagine America attempting to control the entire middle east, or all of Africa or South America. Wouldn't happen. I don't think America would ever be leading the way in a one world government. Sure, we like to have our fingers everywhere and be silently pulling strings, but if any movement towards a one world government will come, I'd imagine the push would be from the EU, with Economic promises to Africa and Asia.
Bluf does make a good point about Israel, there's not even really a slant in the media about this, it's all Israel-good Muslims-bad. Despite the fact that the spread of Islam makes me uneasy, I know for a fact that many Muslims want nothing but peace for themselves and the societies they live in. I just wish that Christians in general had the passion that Muslims do, and feeling strong enough about their beliefs to be willing to die for them.