In the movie Dr. Strangelove, crazed U.S. General Jack Ripper orders his B-52 bomber wing to launch a pre- emptive nuclear attack on the Soviet Union. General Ripper believes the payoffs for a U.S. first strike to be as follows: The U.S.S.R. has a little surprise of its own in the movie. It has constructed a Doomsday Machine, which will automatically destroy all life on earth if the U.S.S.R. is attacked. With the Doomsday Machine operational, the payoffs for a U.S. first strike are as follows: a. Prior to the building of the Doomsday Machine, would a Soviet threat to retaliate be credible? b. How does construction of the Doomsday Machine change this? Hold rates Cut rates U = 100 U = 160 A = 100 A = 60 U = 80 U = 70 A = 150 A = 70 United American Hold rates Cut rates Retaliate Don't Attack 8, 10 10, 10 Don't 12, 10 1, 1 U.S. U.S.S.R. Retaliate Don't Attack , , Don't 12, 10 1, 1 U.S.S.R. U.S. c. What purpose did keeping construction of the Doomsday Machine secret serve? d. In the movie, the Soviet ambassador announced the existence of the Doomsday Machine only after the attack on the Soviet Union was in progress. Did this serve any useful strategic purpose? Why?