It's true the allies bombed commercial and industry areas populated by civilians to win the war, Germany and Japan had started this horrible trend by introducing these tactics to every country they attacked purposely targeting civilians over military targets.
Yes the Japanese also had an army of over a million troops still in China and all around the south pacific, they wanted to negotiate a separate peace with the USSR and USA which would leave them in possession of all their newly conquered territories which was not acceptable.
Hoover was not a factor for the US during ww2 he was president from 1921-28 and a member of the Republican party, so it's fitting that the communist author would take select quotes from him as the end all of answers to support his strange conspiracy theory. Of course in a war of that scale civilians are unfortunately killed, but the US was the most humane of all parties involved when it came to avoiding civilian casualties and you can't argue against the the statistics. The Japanese acted barbaric and savage and got little sympathy from the small price they paid for the massive amount of needless killing they orchestrated, the Japanese killed more civilians than Albert did during their Imperial conquests.
That being said Japan is a wonderful country now and nothing like they were in the past, so of course we feel sympathetic with what happened, an unfortunate but necessary use of force was needed to stop their savagery.
Concerning Hoover, then the article I'm referring to has quotes from some of the most important people on the US side (General Eisenhover, Admiral Leahy, General MacArthur, Assistant Secretary of War John McLoy, Under Secretary of the Navy Ralph Bird, General Curtis LeMay, Vice Chairman of the U.S. Bombing Survey Paul Nitze, Deputy Director of the Office of Naval Intelligence Ellis Zacharias, Commander in Chief of the U.S. Fleet and Chief of Naval Operations, Ernest J. King etc.).
What Hoover and many others are referring to can be one or more of the following Japanese surrender overtures:
The Japanese had sent peace feelers out as early as September 1944 and China had been approached regarding surrender in December 1944. In mid-April 1945, the US Joint Intelligence Committee reported that Japanese leaders were looking for options in surrender terms to end the war. The State Department was at this time convinced that Emperor was actively seeking a way to stop the fighting (Alperovitz, Gar. 'Atomic Diplomacy: Hiroshima and Potsdam'. 1965.)
The Kido memorandum to the Emperor proposed mediation by a third party to settle the war on terms that Japan may give up its overseas conquests and some form of disarmament, but retaining its old order (R.B. Frank.
Ending the Pacific War: Harry Truman and the Decision To Drop the Bomb. 2009).
The Allan Dulles contact in Tokoyo (who may have been lacking support) desired surrender if Japan could retain the Emperor as a basis for maintaining discipline and order (Dulles, Allan.
The Secret Surrender. 1966).
There is no record that any of the 'big six' policy makers in Japan would accept unconditional surrender prior to Hiroshima (but in fact their only condition by then was that the Emperor be spared), but in no way did they expect to hold on to any of the conquered territory or not face military occupation.
A 1945 article by the Chicago Tribune and the Washington Times-Herald - which had been withheld for seven months due to wartime censorship - disclosed how two days prior to the Yalta conference, President Roosevelt had received a 40-page memorandum from General Douglas MacArthur outlining five separate surrender overtures from high-level Japanese officials.
Herein, the Japanese offered surrender terms virtually identical to the ones the US ultimately accepted.
These included:
Complete surrender of all Japanese forces and arms, at home, on island possessions, and in occupied countries.
Occupation of Japan and its possessions by Allied troops under American direction.
Japanese relinquishment of all territory seized during the war, as well as Manchuria, Korea and Taiwan.
Regulation of Japanese industry to halt production of any weapons and other tools of war.
Release of all prisoners of war and internees.
Surrender of designated war criminals.(
http://historynewsnetwork.org/article/129964)
In April and May 1945, Japan made three attempts through neutral Sweden and Portugal to bring the war to a peaceful end, emphasizing that unconditional surrender was unacceptable, and that the Emperor could not be touched.
In June, Japan's Supreme War Council had charged Foreign Minister Shigenori Togo with approaching Soviet leaders with the aim of ending the war by September.
On June 22 the Emperor called a meeting of the Supreme War Council (including the Prime Minister, the Foreign Minister and the leading military figures), saying: We wish that you, leaders of Japan, will strive now to study the ways and the means to conclude the war. In doing so, try not to be bound by the decisions you have made in the past." (
http://www.ihr.org/jhr/v16/v16n3p-4_Weber.html)
Further reading:
https://www.cia.gov/library/center-for-the-study-of-intelligence/kent-csi/vol9no3/html/v09i3a06p_0001.htm