According to Philippe Sands, who does have a certain bias in these matters, Nick's impromptu bit of honesty and principle could land the UK in the dock:

"A public statement by a government minister in parliament as to the legal situation would be a statement that an international court would be interested in, in forming a view as to whether or not the war was lawful."

Well, you'd hope so.  Let's jot down a few names that the International Court might be interested in (via the voting record at TheyWorkForYou, all these voted in favour of the 'Declaration of War' motion on 18/3/2003):

  • David Miliband
  • Jack Straw
  • Phil Woolas
  • Alan Johnson
  • Harriet Harman
  • Alistair Darling
  • Hazel Blears
  • Hilary Benn
  • John Bercow
  • David Cameron
  • David Davis
  • Iain Duncan Smith
  • Liam Fox
  • Chris Grayling
  • Damien Green
  • William Hague
  • Phil Hammond
  • Boris Johnson
  • Francis Maude
  • Theresa May
  • George Osborne
  • Eric Pickles
  • John Redwood
  • David Willetts
  • Oliver Letwin

Well, with that lot out of the way in the dock in Holland, there's nothing to stop Nick taking control of the whole country.  Perhaps that was the plan all along?