U.S. regulators pull the plug on wireless start-up LightSquared's proposal to build a new...

|By:, SA News Editor

U.S. regulators pull the plug on wireless start-up LightSquared's proposal to build a new national wireless network on concerns the network would interfere with GPS devices. Sprint (S) planned to build and operate LightSquared’s network, but anticipating a rejection, has been distancing itself from the project. S +0.4% premarket.