Dr Julian Lewis: In answer to the question asked by my hon. Friend the Member for Altrincham and Sale, West (Graham Brady), the Leader of the House [Margaret Beckett] said that the Prime Minister had frequently outlined the overwhelming political case for the euro in public – a case to which he apparently adheres in secret. Is not it a fact, however, that all that has ever been said in public is that there is no constitutional bar to Britain joining the euro, which is a very different matter? Will she seek to secure from the Prime Minister a honest statement of the reason why he secretly thinks that there is an overwhelming political case for signing up to the single European currency?