Angus Robertson: To ask the Secretary of State for Defence when the last transfer of nuclear material between the United States and Britain under the Mutual Defence Agreement took place; and if he will make a statement. 
8 Feb 2005 : Column 1379W
Mr. Hoon: The 1958 Mutual Defence Agreement makes provision for the transfer of special nuclear materials. Such transfers are in connection with nuclear warhead assurance and stockpile stewardship matters. Precise details of such transfers are being withheld in order to safeguard national security.