Chilling message from US envoy foretold Nanjing Massacre

"Today the news from the Far East is worse than ever and I have read your statements as to Japanese brutality. The Japanese ambassador here boasted a day or two ago of his country's having killed 500,000 Chinese people...

"This simply means the policy of Mussolini and Hitler is expected to be applied to the world and what a sad result this would be. "

That was the chilling confidential telegram sent to then US president Franklin D. Roosevelt by William Edward Dodd, then American ambassador to Germany.