:::It would also be interesting to know how cultural/economic differences have widened/narrowed over time between states/regions of the USA on various matters. On the one hand radio/TV/internet/automobile/interstate highway/national franchises would make things more homogeneous in the USA (of course the internet and cable TV causes "ideological cocooning" too), while the [[culture war]] post 1960s has created tensions within various parts of the USA. | :::It would also be interesting to know how cultural/economic differences have widened/narrowed over time between states/regions of the USA on various matters. On the one hand radio/TV/internet/automobile/interstate highway/national franchises would make things more homogeneous in the USA (of course the internet and cable TV causes "ideological cocooning" too), while the [[culture war]] post 1960s has created tensions within various parts of the USA. |