From Wikipedia
The World At War
Episode Seven
U.S.A. (1939 - 1942).
The opposition by various factions to the United States of America entry into the war, U-boat attacks on Atlantic convoys and America's gradiated responses, the mobilization of America after Pearl Harbor, the fall of the Philippines, the Doolittle Raid, Midway and Guadalcanal. Interviewees include John Kenneth Galbraith, John J. McCloy, Paul Samuelson, Isamu Noguchi, Richard Tregaskis and Vannevar Bush.