he 400-acre Coffee County Joint Industrial Park, outside Tullahoma, Tennessee, struggles to attract businesses without high speed internet.

How big telcos are smothering city-run broadband services

For more than a decade, AT&T, Comcast, Time Warner Cable Inc., and CenturyLink Inc. have spent millions of dollars to lobby state legislatures, influence state elections and buy research to try to stop the spread of public Internet services that often offer faster speeds at cheaper rates.