Task #1: You will read through the following documents and answer comprehension questions relating to each document
….I had then set up a committee of top men and had asked them study with great care the implications the new weapons might have for us. It was their recommendation that the bomb be used against the enemy as soon as it could be done. They recommended that it should be used without specific warning and against a target that would clearly show its devastating strength. I had realized, of course, that an atomic bomb explosion would inflict damage and casualties beyond imagination. On the other hand, the scientific advisers of the committee reported, "We can propose no technical demonstration likely to bring an end to the war; we see no acceptable alternative to direct military use." It was their conclusion that no technical demonstration they might propose, such as over a deserted island, would be likely to bring the war to an end. It had to be used against an enemy target. …
I regarded the bomb as a military weapon and never had any doubt that it should be used. The top military advisers to the President recommended its use, and when I talked to Churchill he unhesitatingly told me that he favored the use of the atomic bomb if it might aid to end the war.

-Harry Truman Memoirs 1955 pages 419-423 (US president when the bombs were used)
Why did the committee advising President Truman recommend that bomb should not be demonstrated and instead should be used against the enemy?

Why did Churchill favor the use of the atomic bomb?