I am grateful to my e-pal, JK, for pointing me to this site which adds to my knowledge of the events leading up to Pearl Harbour and highlights the moral courage of a truly remarkable officer in the USN:
Admiral J. O. Richardson was placed in command of the Pacific fleet in late 1939 on the personal diktat of Roosevelt, himself. However, Richardson was obviously a man remarkable not only for his shrewd judgment in naval matters but also for his absolute honesty and his sense of duty in reporting his doubts and concerns to the highest in the land.
It is important to understand that prior to 1941 the entire American leadership knew, but refused to face up to the knowledge, that the Philippines were a lost cause. The Pacific fleet was so run down that it was incapable of mounting any sort of major initiative across to the western Pacific. And yet, the plan was that when war broke out the fleet would immediately sail west into battle against the Japanese fleet which, it was assumed, would be leading and protecting its invasion forces. No-one dared "speak truth to power", except Adm. Richardson:
Almost from the start, Richardson clashed with his superiors over their plans for the Pacific Fleet. In January 1940, Admiral Richardson advised the Chief of Naval Operations, Admiral Harold Stark, that existing plans for war with Japan were unrealistic [...]
Richardson personally informed the then Chief of Naval Operations (CNO) that, in effect, the entire American strategy was moonshine. Later, the CNO recalled the conversation: