(Credit: CNET/Marguerite Reardon) AT&T appears to be shifting its focus back to the US rather than expand into Europe. That's according to AT&T Chief Financial Officer John Stephens, who was speaking at an investor conference on Wednesday. The event was Webcast. Related stories AT&T offers price cut for 2GB 'Mobile Share Value' plans AT&T serves up Android 4.4 to Samsung Galaxy S4 BlackBerry CEO ...


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