“A: ‘Yes, with the exception of hospital ships and other vessels under “safe conduct” voyages for humanitarian purposes.’
“4. Q: ‘Were you under orders to do so?’
“A: ‘The Chief of Naval Operations on 7 December 1941 ordered unrestricted submarine warfare against Japan.’
“5. Q: ‘Was it customary for the submarines to attack Japanese merchantmen without warning—outside of announced operation or similar areas since the outbreak of the war?’
“A: ‘The reply to this interrogatory involves matters outside the limits of my command during the war; therefore I make no reply thereto.’
“6. Q: ‘Were you under orders to do so?’
“A: ‘The reply to this interrogatory involves matters outside the limits of my command during the war; therefore I make no reply thereto.’
“7. Q: ‘If the practice of attacking without warning did not exist since the outbreak of the war, did it exist from a later date on? From what date on?’
“A: ‘The practice existed from 7 December 1941 in the declared zone of operations.’
“8. Q: ‘Did this practice correspond to issued orders?’