Gordon Brown's Government secretly promised to limit the extent of the Iraq war inquiry to prevent damage to the United States, the leaked cables disclosed. The pledge – made last September as the Chilcot inquiry into the war started – threatens to damage the credibility of the investigation, which is due to report in the new year.
A message from Jon Day, then director-general for security at the Ministry of Defence, reassured American officials that "the UK had put measures in place to protect
interests during the UK inquiry into the causes of the Iraq war".
A separate document makes clear that Sir John Chilcot, who is chairing the investigation, felt his inquiries were being hampered. He expressed "frustration" that he was unable to refer to relevant documents during his questioning of Lord Goldsmith, the former Attorney General. British officials also warned the US there would be a "feeding frenzy" of interest in the UK about the inquiry, in contrast to the US, where the Iraq war was "no longer a major issue".
http://www.independent.co.uk/news/world/politics/labour-put-limits-on-iraq-inquiry-to-keep-the-us-happy-2148010.html