Nor did the inquiry ever delve into why the Lusitania wasn't diverted to the safer North Channel route, and why no naval escort was provided. Indeed, these are the great lingering questions of the Lusitania affair: Why, given all the information possessed by the Admiralty about U-20; given the Admiralty's past willingness to provide escorts to inbound ships or divert them away from trouble; given that the ship carried a vital cargo of rifle ammunition and artillery shells; given that Room 40's intelligence prompted the obsessive tracking and protection of HMS Orion; given that U-20 had sunk three vessels in the Lusitania's path; given Cunard chairman Booth's panicked Friday morning visit to the navy's Queenstown office; given that the new and safer North Channel route was available; and given that passengers and crew alike had expected to be convoyed to Liverpool by the Royal Navy--the question remains, why was the ship left on its own, with a proven killer of men and ships dead ahead in its path?