A newly released memo revealed that President Roosevelt was warned that Tokyo was focused on Hawaii days before the attack on Pearl Harbor.
Meh. Of course the Japanese were focused there. Further in the article we see this:
In the newly revealed 20-page memo from FDR’s declassified FBI file, the Office of Naval Intelligence on December 4 warned, “In anticipation of open conflict with this country, Japan is vigorously utilizing every available agency to secure military, naval and commercial information, paying particular attention to the West Coast, the Panama Canal and the Territory of Hawaii.” (emphasis mine-Xbrad)
Where else would the Japanese be focused? The primary counter to any Japanese plans would be the US Navy. Which was concentrated at Pearl Harbor, and supported by installations along the West Coast. The Panama Canal was of interest to the Japanese because it could be used to re-position forces from the Atlantic Fleet.
One of the challenges facing the administration in the days before the attack was the absolute flood of information coming in. Discerning what was important, and what was extraneous was almost impossible. And a vague warning that the Japanese were paying attention is hardly an indication that they were actively planning a massive air attack against the islands.
This is pretty weak tea.