David,
Let's not forget. A LOT can happen in the course of a year. I believe that one year from now, the U.S. may not be a super power. Some terrorist attacks, an economic crash, and war could definitely accelerate the fall of the USA. I'm not wishing it, but we have to admit that world conditions are favorable at this point. In my far less than perfect "human" thinking, I personally see twobombs time frame of the end time events as being reasonable. I think it's coming a lot faster than most people think. I consider John Hagee to be one of the most prominent end time teachers. He has recently been saying that he believes that we are down to a matter of months before the rapture.
Jon Amos
John 3:3