Very interesting.
Helm ...out
MacArthur spent most of his career in Asia. He realized that Hirohito to the Japanese was like Jesus Christ to Christians and while they might make a lot of threats and bluff a lot in order to save face in the end they would never act against their Emperor.
Thats why MacArthur entered Japan with such a small contingent of forces. He had already made a secret pact with Hirohito that he would protect the royal family from disgrace and knew because of that his safety was assured. He also knew that the Japanese would also respect his utter lack of fear of entering the country as a, what amounted to, a foreign Shogun.
At Potsdam the fate of the Japanese royal family was strangely left out wasnt it? During our vicious bombing campaign of the Japanese mainland we did not target Japanese cultural treasures, or, the Royal family grounds in Tokyo. All of these were concious signals to Hirohito.
Especially since Hirohito and his Uncle, Asaka, were both guilty as hell of war crimes. Most of all the rape of Nanking. Crimes they were never prosecuted for btw. That was the price for enlisting the Royal family in creating a Democratic bastion in Japan for the coming war against communism.
Anyhoo....a little background.