asked the Prime Minister if she has now had discussions with the Government of Holland on the security risks involved in the Khan incident at the nuclear centrifuge establishment at Urenco, Almelo, Holland.

I raised this matter with the Netherlands Prime Minister, Mr. van Agt, at my meeting with him on 6 December 1979. He agreed that this was a matter of most serious concern and assured me that everything possible was being done to prevent a repetition.