What was the info obtained by Adm Chuichi Nagumo, during the last 12 hours or so, before the PH attack? Two sources, I have found say about the same thing (I now feel I need two sources, due to my lack of credibility, according to a few, but very vocal members on this forum). http://www.time.com/time/magazine/article/0,9171,871891,00.html Japanese spy, Vice Consul Morimura (his real name was Takeo Yoshikawa), sent this from Pearl Harbor to Toyko, the night of Dec. 6, 1941. VESSELS MOORED IN HARBOR: NINE BATTLESHIPS; THREE CLASS-B CRUISERS; THREE SEAPLANE TENDERS; SEVENTEEN DESTROYERS. ENTERING HARBOR ARE FOUR CLASS-B CRUISERS; THREE DESTROYERS. ALL AIRCRAFT CARRIERS AND HEAVY CRUISERS HAVE DEPARTED HARBOR. No INDICATION OF ANY CHANGES IN U.S. FLEET. 2nd source::// ibiblio.org/pha/timeline/411206cx2.html, says the same thing, but adds, it appears that no air reconnaissance is being conducted by the fleet air arm (which would be useful info). Time says, this was the "last word required by Nagumo before mounting the Japanese attack on Pearl Harbor", but my question was it the last intelligence, Nagumo was able to get. On another forum, claims are made that subs were giving him info and that Nagumo sent out scout planes, before launching the first wave of planes, which also gave him info. If accurate, how did they communicate, if strick radio silence was being adhered to?