@aral IMO, the US government didn't go for enough when they settled for breaking up the Bell System. (https://en.wikipedia.org/wiki/Breakup_of_the_Bell_System)

They should have utterly destroyed AT&T. They should have nationalized the POTS infrastructure, made Bell Labs a civilian R&D agency, and put all of AT&T's patents, copyrights, and other IP into the public domain, including UNIX.

I think this would have solved a great many problems, and prevented future problems by setting a precedent.