So the principles of warfare are: Do not depend on the enemy not coming, but depend on our readiness against him. Do not depend on the enemy not attacking, but depend on our position that cannot be attacked.
The end and aim of spying in all its five varieties is knowledge of the enemy; and this knowledge can only be derived, in the first instance, from the converted spy. Hence it is essential that the converted spy be treated with the utmost liberality.
Look for the enemies of Medicare, of higher minimum wages, of Social Security, of federal aid to education and there you will find the enemy of the Negro, the coalition of Dixiecrats and reactionary Republicans that seek to dominate the Congress.