Apparently after four decades of getting the existing Internet moving, researchers have decided it's junk, and we need to build a new one. it seems a little ominous - according to the article "Industry is playing a bigger role this time, and law enforcement is bound to make its needs for wiretapping known." - so I guess the present Internet is unable to be used to its full economical or wiretapping potential.
The biggest hurdle, they admit, is switching over from the existing Internet to a new one, a veritable pole vault over the moon. Can you really just change a system as big as the Internet, or, for that matter, the environment? For the first one, I don't know, for the second, I hope so.