HC Deb 04 July 1956 vol 555 c108W
55. Mr. Mason

asked the Minister of Defence what evidence he has regarding atomic devices exploded by other Powers and not detected by this country's instruments at the approximate time of explosion.

Sir W. Monckton

As I have indicated on several occasions, I have nothing to add to the reply given by my right hon. Friend the Prime Minister on 28th February to the hon. Member for Ashfield (Mr. Warbey).

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