I have been asked to reply.
A Joint De-classification Guide has been in use by the United Kingdom. Canada and the United States since April, 1946. Revision of the guide is made by agreement between the countries concerned and is based on the recommendations of periodic conferences attended by their representatives. Membership of any particular conference depends on the sections of the Declassification Guide under discussion.
Could the right hon. Gentleman explain to the House to what extent this Committee has been responsible for suppressing the news of the partial control of the H-bomb experiments at Harwell, and can he say when a full statement will be made on this matter?