The Anti-Defamation League is marking its centennial with a video called "Imagine a World Without Hate", which tells of a better place where people like Martin Luther King Junior and Anne Frank had not been murdered.
The ADL has focused much of its work on the Holocaust. The film features the successful careers and likely contributions to society by Daniel Pearl, Harvey Milk and others who, in real life, had their lives cut short.
A statement said the video also asks the questions "What if America had been a more tolerant and welcoming society?" and "What if more people had defied Hitler?"
The film is set to music written by John Lennon – the Beatles band member who was shot down in 1980.