I have since consulted Charles Moore, the last editor of the Telegraph before the Barclays bought the paper in 2004. Mr Moore confessed that the published accounts of Hollinger Inc, then the holding company for the Telegraph, did not receive the scrutiny they deserved. But no newspaper in history has ever given an unfavourable gloss on its owners accounts. Beyond that, Mr Moore told me, there had been no advertising influence on the papers news coverage.
There is a purpose to journalism, and it is not just to entertain. It is not to pander to political power, big corporations and rich men. Newspapers have what amounts in the end to a constitutional duty to tell their readers the truth.
There is a problem with
" a constitution" in the UK, a D-Notice for example comes to my mind
A DA-Notice or Defence Advisory Notice (called a Defence Notice or D-Notice until 1993) is an official request to news editors not to publish or broadcast items on specified subjects for reasons of national security. The system is still in use in the United Kingdom.
...
In June 2013 a DA-Notice was issued asking the media to refrain from running further stories related to the US PRISM programme, and British involvement therein.[11] On 28 October that same year, the topic arose in Parliament, when the Prime Minister made a statement to threaten by judicial means to restrain publication of any further Snowden stories in the Guardian (or by extension, other media).[12]
http://en.wikipedia.org/wiki/DA-Notice