K, bro. Its like you don't think weather is a thing (are you from Texas or something?). And high speed rail has a shitload higher chance of becoming viable by going underground (plus it opens up the potential for vacuum which will help speed and efficiency). It doesn't even need to be very high speed and it'd be an improvement, and electric trains will be more efficient already. That would displace a LOT of our current emissions (trucking) whilst recognizing that industry dying already. Plus it'd cut down on shipping, and cutting into air freight (another high energy use).
Further, I think they could use it as a defense initiative (meaning they can get the cost passed by making it a defense budget item) by making the same argument as they did for the interstate highway system (which incidentally, build it under the interstates), which also needs work in plenty of areas. Plus it could open up improvement to the national electric grid and a hardened communication/internet backbone that would be protected against the dreaded EMP or solar flares, etc. Also potentially building a national water grid (which we could use to funnel seawater inland and refill acquifers, create recreation areas that we use the wind, solar in the region to process into clean water, which can then be sent into another pipe to keep transportation centers and agriculture from getting starved by droughts.