Let It Happen on Purpose Involvement

Pearl harbor is not mentioned anywhere in the 14 part message. Is that evidence of let it happen on purpose involvement? It's true that he knew the attack was coming, but he still didn't know where it would be. As a result, there wasn't reason to warn pearl harbor specifically. They could have warned everybody they had in the pacific, but they thought they'd done this. The outcome of the pearl attack was not what president roosevelt was expecting.