Read the following passage and answer the questions that follow.

Man is not destined to vanish. He can be killed, but he cannot be destroyed, because his soul is deathless, and his spirit is irrepressible. Therefore, though the situation seems dark in the context of the confrontation between the superpowers, the silver lining is provided by the amazing phenomenon that the very nations which have spent incalculable resources and energy for the production of deadly weapons are desperately trying to find out how they might never be used. They threaten each other and go to the brink, but before the fatal hour arrives, they withdraw from the brink.