TheCodeBreakers
A little more than an hour after the hands of Honolulu clocks had
snipped off December 6 and opened out into the first hours of December
7, the Pearl Harbor strike force received Tokyo's relay of Yoshikawa's
final message. The American ships were still in harbor, awaiting the ax
stroke with fat complacency. They were apparently not even protected by
air search. Was it all a decoy? The strike force's radio officer, Commander
Kanjiro Ono, listened intently to Honolulu's radio station KGMB for any
inkling that the Americans knew of them. He heard only the soft
melodies of the islands. On Hiryu, the flight deck officer slipped bits of
paper between each plane's radio transmitter key and its contact point to
make sure that radio silence, so carefully preserved for almost two
weeks, would not be accidentally broken in the last few hours to destroy
the element of surprise.
As Yoshikawa's final report was being decoded aboard Akagi, Kramer
annaabi.ee 
