So the McCanns come under 'National Security' and Madeleines death is an 'Official Secrets Act'.
http://blogs.mirror.co.uk/anything-you-say/CSS/mccannfoi.pdf
http://steelmagnolia-mccannarchives.blogspot.com/2011/07/mccanns-and-national-security.html
http://www.guardian.co.uk/uk/2010/dec/13/wikileaks-madeleine-mccann-british-police
http://steelmagnolia-steelmagnolia.blogspot.com/2011/06/madeleine-mccann-official-secrets-act.html