The head of RCA, Sarnoff, had agreed to provide the Navy in Hawaii with the coded messages tapped from local Japanese and from the Japanese Consulate phones and messages. Key intercepts were provided on December 3, 4. Rochefort put his best people on it, but couldn't finalize decoding until Dec 10, at which point they realized they had the key info forecasting the attack.
How maddeningly frustrated and sick to their stomach they must have been on Dec 10.
10 posted on 12/04/2011 7:07:03 AM PST by TADSLOS
(Lexicon Genetics- Rick Perry's Solyndra Moment)