This needs a closer look, right now

In this post, Eric Lerner discussed how NASA stopped funding fusion research for advanced propulsion.  In view of the urgent need for new energy sources, this should be restarted immediately.  This is one area where NASA spending could definitely yield big benefits in terms of spinoff technologies.  If DPF could be researched as a means of rocket propulsion, the knowledge gained could also lead to a net energy fusion device.  A strong effort here could pay huge dividends.   Does anyone care?