Will It Make Any Practical Difference If Scientists Finally Crack The Nuclear Fusion Nut?

This morning David Abel reports in The Boston Globe  reports that scientists at MIT and elsewhere have made significant progress toward doing something that has long been thought impossible -- harnessing nuclear fusion to satisfy all of our energy needs without climate-warming air emissions and without generating radioactive waste.

In fact, I was surprised to read, an MIT spinoff is currently building a prototype of a fusion reactor in Devens, Massachusetts.

On the one hand, this would seem to be incredibly good news during an otherwise greatly diminished holiday season. On the other hand, would it make any practical difference in the United States if scientists accomplish this Nobel Prize-worthy end?