Dead Wake: The Last Crossing of the Lusitania

I wanted to love this book as much as I did Erik Larson's others. But I found it harder to get through, with only the last quarter really capturing my interest. I had hoped he would offer some conclusions about the controversy around the sinking of the Lusitania (did the British intentionally leave the ship unprotected so it would get torpedoed, bringing the US into the war? What caused the second explosion?) but I don't feel like I know any more than I did before reading this book.