Almost all the graphs start to kick up around 1950. Interestingly, the REA was expanded to include telephony in 1949. I don't think that there's a coincidence b

Almost all the graphs start to kick up around 1950. Interestingly, the REA was expanded to include telephony in 1949. I don't think that there's a coincidence between AT&T construction spending and subsidized government loans for expanding infrastructure.