The British preoccupation with the perceived danger of communist infiltration and subversion

An alleged danger of Nazi and subsequently of communist subversion, made sometimes in good faith by official British sources, was frequently voiced with a view to persuade British as well as foreign public opinion of the dangers inherent in Jewish immigration into Palestine. These spokesmen and official or unofficial mouthpieces tried to convince the authorities and media in countries which were perceived to have turned into the main sources of moral and financial support for the Illegal Jewish Immigration to abandon, or at least to reduce their support for the Jews.