Engineering360: "Video: Road map to a US hydrogen economy"

What's the price tag on this? What are the proven benefits? It all seems very hazy factually speaking, too many "what if's" and assumes a lot of political will that I'm not sure exists as a bankable certainty...The goals don't seem realistic, nor is the technology proven at this scale...the assumption that everyone is on-board is false... Where are the job projections, you do not exist in a vacuum, you are part of a system....