So we're finally moving back to speed limits like we had prior to '73. Thank God!
Have seen some two lane country-type highways down here in GA/SC moving back to 65mph. About time. If it was safe back in the early '70's with the vehicles being built back then (4 wheel drum brakes, no crumple zones, bare metal dashboards, no air bags, etc.), surely it's even safer these days, 40 years later.
Haven't seen any of the old speed limit signs that change posted speeds after dark...for instance, during the day the sign would read 65 mph but after dark, your headlights would reflect off the sign which would then read 60 mph.