Energy needs
Marketing ideas might work for fossil fuels, but for nuclear, there is such a strong NIMBY movement in this country that extraordinarily strong political leadership is needed to move to new nuclear plants for electricity. That aside, absent fossil fuel, wind, solar, and biofuels will only meet a tiny fraction of our energy needs. Of course, if nuclear power is plentiful, energy from those could be used to hydrolyze water for the hydrogen, and extract carbon from the atmosphere to create synfuel. This wouldn't be cheap, but it would be a lot better than reverting to horse travel.
