I recently read Neil Stephenson's book called "Fall", in which a significant chunk of the novel is set about 30 years in the future. At that point in time, large swathes of America are referred to as "Ameristan", because they are break-away territories ruled by evangelical warlords. It feels surprisingly prescient.
I think about the Ameristan stuff and people being "facebooked" all the time since reading that book. In the time since I read it I feel like we just keep getting closer and closer to that reality.