A court ruled last month that the correspondence should be published.
But Mr Grieve said it was an exceptional case where the letters formed part of the prince's "preparations for kingship".
The Guardian said it would seek to take the government to the high court to challenge the veto .
The Republic group called the ruling an "affront to democracy" which was "all about protecting Charles and the royal family from scrutiny". » | Tuesday, October 16, 2012
THE GUARDIAN – EDITORIAL: Prince Charles's letters: a right royal cover-up: The prospect of a systemic and fundamental abuse of the essentially passive role of the crown in our constitutional monarchical system seems too dangerous to contemplate » | Editorial | Tuesday, October 16, 2012
