HC Deb 31 July 1963 vol 682 c114W
Mr. Mason

asked the Parliamentary Secretary for Science whether, for the purposes of perfecting a system of underground test detection, it is now the intention of the Atomic Energy Authority in collaboration with the United States Atomic Energy Commission to make further underground tests.

Mr. Denzil Freeth

If the hon. Member is referring to nuclear tests, the answer is "No".

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