TherolloutofuniversalSIMcards,calledeSIM,couldbedelayedbecauseofaninvestigationintowhetherwirelesscarrierscolludedtomakeitmoredifficultforcustomerstoswitchservi
TheU.S.JusticeDepartmentisprobingsomeoftheleadingwirelesscarriersandanindustrygroupoverpossiblecoordinationtomakeitharderforcustomerstoswitchcarriers.TheJustice