be very scared

Sounds like a very overly melodramatic title doesn't it. Forbes describes how shaky things are right now in this article by that very name.

Remember how life was just 20 years ago. what about 30 years ago in the US. We weren't this opulent.

I think we are on the brink of a global depression. Why would Greenspan say there is a high likely hood of a recession in the US? What would motivate him to say that?