One of the angles explored in our discussion of the media is the greater concentration of media ownership made possible by the relaxation of ownership rules over the past decades, most recently the Telecommunications Act of 1996.
Concentrated ownership is argued to reduce the number of voices involved in public debate, biasing outcomes towards those who own or influence media outlets. Those opposed to regulations point to newer technologies, like the Internet, that expand the number of voices since the costs of entry are reduced.
I know of no reliable studies that help determine which argument is more valid, but the media environment might be getting more concentrated if Rupert Murdoch purchases the Wall Street Journal.
Should the person who already controls Fox News also control the Wall Street Journal? If not, what might justify preventing him in doing so?