Censorship

MURDOCH'S MACTAGGERT LECTURE

Rupert Murdoch, Edinburgh Television Festival 1989 (MacTaggert Lecture)

GILLIAN DOYLE's MEDIA OWNERSHIP

From his 2002 book "Media Ownership"

Cultural pluralism is another important concernCultural diversity and the cohesiveness of society will be threatened unless the cultures, views and values of all groupings within society (such as those sharing a particular language, race or creed) are reflected within the media.

Read more here from his paper from the Uni of Stirling:

LORD BLACK'S 1945 US CONGRESS STATEMENT

Linking it to the First Amendment in the US Constitution by Justice Hugo Black of the US Supreme Court:

the widest possible dissemination of information from diverse and antagonistic sources is essential to the welfare of the public...a free press is a condition of a free society.

...

C.EDWIN BAKER:

Also author of books, including Media Concentration and Democracy and Media, Markets and Democracy.