In the 1930s, Hitler and his colleagues were well aware that a programme of euthanasia would be opposed by the German public if it were introduced in it's entirety from the outset, so they began by working to change public opinion slowly, but surely, via a campaign of propaganda. The National Socialist Racial and Political Office (NSRPA) produced leaflets, posters and short films to be shown in cinemas, pointing out to Germans the cost of maintaining asylums for the incurably ill and insane.