Something comes to mind reference CON why EVFL doesn't tell all - COMPETITION! This is a dawg-eat-dawg industry. BIOFUELS, ALGAE etc - there are hundreds of starterup companies (some that are backed by the Big Oil companies) - I think EVFL has a phased plan - and they want to make sure they don't get "knocked off" by the Powers-to-Be.
Someday - they will be one of the Powers-to-Be! IMHO.