I first heard this book at the age of 14 way back in the 1970s. It was a tape of the Sermon Dave Wilkerson gave which later formed the basis of the book. What we heard astounded us...it didn't seem possible back then that pornography would be so wide spread, and that the church would become so corrupt (in places)...but we took it seriously because we respected him. The most particular and interesting prophesy I found was that the "Iron curtain" would come down (in order to get the gospel into the Eastern Block) in the mid 70s this was just unthinkable; but it happened. (He goes onto predict it will go back up with a vengeance).
Through all these years with all the tumultuous things that have happened I have tried to do what Wilkerson suggests and look up and say "God in in Control" there is a strange comfort to the predicted coming true, it seems to act as a buffer because I supposed forwarned is forarmed. Most of what this book predicted has come to pass but there are a few things yet to be fulfilled: The iron curtain must go back up. There is likely to be some sort of oil war in the Middle East. America will experience a devastating earthquake that will be covered on all the major networks. (This maybe the event that takes America out of the picture as she is not mentioned in Revelations). I've only included the specific predictions here - there are many covering famines, wars plagues etc which are always happening around the globe.