History demonstrates that in order to build world-class infrastructure, be it railroads or electricity, a mutually beneficial commitment between communities and the providers of that infrastructure is, and has always been, essential. It is no different for communications.
Comcast claims it tried but failed to build a wireless business multiple times before it sold out to Verizon. Assuming Comcast is being honest, its failure has big implications for U.S. mobile competition. If Comcast can’t make wireless work, what hope is there for a newcomer?