Rotblat agrees with BR's 2 March letter, that it is impossible to discuss the H-bomb politically without expressing a controversial opinion. "I had a chat about this with the editor of the New Scientist, Percy Cudlipp, who said that as long as we can hear an opposite view as well he will not mind having a controversial issue ventilated." In respect to this Rotblat has asked Sir George Thomson, who recently strongly spoke out against people advocating bans on H-bomb tests, to write an article.

A copy of the carbon for this letter is located at record 7486.