"Agent Williams: We are engaged in a war. This war does not for the moment involve men at arms; it involves information. You will be collecting information. You will be gathering intelligence about the enemy. The intelligence you gather could give us the upper hand in a full thermonuclear exchange with the Soviet Union, or it could prevent one. For public purposes, as far as your wife or mother or sweetheart or the good lord above, your mission does not exist. if it does not exist, you do not exist. You cannot be shot down. You cannot be captured."