Us and the US Empire?

In Richard Horsley's book Jesus and Empire he offers some pretty scathing critiques of the United States economic and political policy in comparison with the Pax Romana and how it was kept. One thing that he pointed out that I thought was interesting was how we often talk about Roman roads and peace providing means for Christianity to spread so quickly, but we don’t talk about the backs upon which the roads were built or the peace that was made through innocent blood. I have no doubt that God used that evil to spread the Gospel. I have no doubt that God uses American Imperialism for his good purposes. Well, it is an interesting book and he raises some very important issues. I think his reconstruction of Jesus’ program is lacking, but his Roman/American parallels are shocking. I would recommend if not the whole thing the first and last chapters of the book. I love you guys. I miss you and thought this might generate some discussion. What do we do living in an evil empire and the Kingdom of God?