It was the thirties. Robert Moses, the most powerful urban planner in New York's history, ordered the construction of bridges so low that buses could not pass. Buses were the transport of the poor and the black population. No law was needed: the bridge was exclusionary by design and by default.

Ethics deals with the moral principles that govern a person's behavior and the way they act. In most civilizations, ethics has been closely linked to different religions, which provide guidelines for behavior for their followers and prescribe what is right and what is wrong.