 The theme of American innocence betrayed was also frequently depicted on screen, the melodramatic aspects of the narrative lending themselves naturally to the movies.The President's description of December 7, 1941 as "a date which will live in infamy" was borne out; the date very quickly became shorthand for the Pearl Harbor attack in much the same way that November 22, 1963 and September 11, 2001 became inextricably associated with the assassination of John F. Kennedy and the September 11 attacks, respectively.The slogans "Remember December 7th" and "Avenge December 7" were adopted as a rallying cry and were widely displayed on posters and lapel pins.