Which of the following details is not one of the pieces of evidence FDR produced to support his claim that the Japanese attacks on Pearl Harbor were unprovoked?

The U.S. was still negotiating with Japan when the attacks began, and Japan attacked multiple locations at nearly the same time. FDR also pointed to the great distance between Japan and Hawaii as evidence that the attack had been planned. The claim that the Japanese ambassador spoke to FDR and said the attacks were meant as a warning is not one of the evidence points; the ambassador did not explain the attacks that way.

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