This image is the cover of a propaganda comic book in the 1960’s which i got from the website http://www.designer-daily.com/examples-of-american-cold-war-propaganda-2918.
This image represents communism as the iceberg that could sink America. It shows Uncle Sam happily perched on the end of the boat portraying American as a happy and peaceful society.The communist countries are shown as graveyards on the icebergs emphasising they have fallen into the dangerous communist trap already and will not be able to return. The idea of the communist iceberg being red is representing evil. I also think the sheer size of the iceberg in comparison with the boat shows how dangerous communism is to American and how easy it would be to fall into the communist pitfall.