of the united states how good they are at the u.s. navy. the next shift, the william s porter, simulating and exercise, accidentally has a firing mechanism in one of the torpedo tubes and fires a live torpedo at the uss iowa. the captain turns the uss iowa towards the torpedo and the thing this is the bow just barely and explodes about 1,000 feet off. fdr is thrilled. he claps. but the captain realizes that he could have lost the president and all of his joint chiefs of staff on that one ship. that's just one of the little nuggets. >> tucker: that's just remarkable. i have to ask you. do you think fdr understood who stalin was. historians have said that fdr was naive about joseph stalin. >> i think he knew what stalin was, ruthless dictator. he bent over backwards to try to make this alliance happened.