Apple has kept an illegal monopoly over smartphones in US, Justice Department says in antitrust suit

Read MoreThe Justice Department has announced a sweeping antitrust lawsuit against Apple, accusing the tech giant of engineering an illegal monopoly in smartphones that boxes out competitors and stifles innovationThe Justice Department has announced a sweeping antitrust lawsuit against Apple, accusing the tech giant of engineering an illegal monopoly in smartphones that boxes out competitors and stifles innovation