http://news.yahoo.com/uk-parliamentary-body-likely-recall-james-murdoch-113242395.html
Excerpt:

In a letter written four years ago in an appeal against his dismissal from the tabloid, former royal reporter Clive Goodman said the practice of hacking was openly discussed until the then-editor Andy Coulson banned any reference to it.

Coulson, who has repeatedly denied all knowledge of the practice, went on to become the official spokesman for Prime Minister David Cameron, a move which took the affair into the political arena and forced the government to turn on Rupert Murdoch after years of courting his favor.

http://www.cjr.org/the_audit/murdoch_scandal_clive_goodman.php
Excerpt: