Possible Clues:

• International commerce without government interference
• That gives one no protection
• If business costs nothing, perhaps, that gives one no protection
• The sort of business that will give one no protection
• This gives one no protection
• There's no protection if the business is not paying
• That'll give you no protection
• Interchange of commodities without hinder
• That way to do business without doing your duty
• Reason why the concept of duty has become absent in commerce?