As I mentioned in an earlier reply, in the intervening 45 years since I first started working on 'Fast Reactors', no administration has made a serious commitment to nuclear development. Some things are happening now on that front - e.g. Versatile Test Reactor (VTR) in Idaho, and Small Modular Reactors, like NuScale's SMR design...but the discussion on choices, roles and quantities needs to be elevated...and frankly treated on a near emergency basis.