Is there a manifesto or document anywhere which lays out the economic case for (US) Federal grants to develop free software? How many developers and how many pr

Is there a manifesto or document anywhere which lays out the economic case for (US) Federal grants to develop free software? How many developers and how many projects could be staffed full-time with a billion dollars set aside annually for an Office of Open Source Software? (Of course such an office would descend into a cluster-[bleep] of political warfare over topics that have nothing to do with developing software so spending nothing probably gets as much done in this area than creating a government office which costs money and doesn’t get anything accomplished.)