Well the thing about the bible is the United States, Canada & Mexico for the most part is not mentioned at all whatosever.
Which only leads me to believe one of two things. God struck those words and our location out of the bible for a purpose to conceal some crucial evidence. Or King James himself struck those things from the bible for fear his people would read it and say hey "We won't be the biggest force on the planet" which would have caused intense chaos amongst his people lol.
So with that being said the Anti-Christ has to have power over the people, or the people have to choose him to have power. He has to be liked by the people. At first I thought Barach Obama had a good shot at it, but people are starting not to like him so much, over here anyways. So I'm not so sure about that.
The bible speaks of a 300 million man army marching from the east to the west (China is the only country to have this many people) in the end times. I am pretty comfortable saying that we are indeed living in the end times. Rapid growth which is compounded over and over every day is only pushing ourselves as humans to further destruction unfortunately.
When there is a one world economy, and all the countries start working even more so together then be ready. I can see it being decided on part of the United Nations, perhaps it could be a leader from one of the "NEW" districts elected for X years. For example there is complete chaos in the world. Famine is breaking out, the economy has collapsed. The United Nations will gather the leaders together and form a one world economy to ease the blow. Followed by that will come a one world leader (How long I'm not certain yet, but things are happening faster and faster because people are scared these days, and fear moves the masses as much as a chance for hope and peace) which will be elected by a voting process through the United Nations. Initially it will be determined that a different leader from each region perhaps may be the One World Leader, each will get a chance, etc. It also says in the bible that through "blank" it will give him power. So only through "blank" does the anti-christ have the powers to do things. I can see how this will play out in the future. I've visualized it many times.
I can't wait to be honest xD