Its purpose was to investigate enemy activities, prevent sabotage against British interests in the Americas, and mobilise pro-British opinion in the Americas. As a 'huge secret agency of nationwide news manipulation and black propaganda', the BSC influenced news coverage in the "Herald Tribune", the "New York Post", "The Baltimore Sun", and Radio New York Worldwide. The stories disseminated from the organisation's offices at Rockefeller Center would then be legitimately picked up by other radio stations and newspapers, before being relayed to the American public. Through this, anti-German stories were placed in major American media outlets to help turn public opinion.