We must remember that there are people in this world who are psychopaths. Characteristics of these people are that they are very clever, they only think of themselves, they use others for their own gain and they lie. An example may be Hitler who was clever, he used a whole nation for what he wanted and he may have told a few porkies. We could look at today's leaders and see if any characteristics fit but this world must recognise these traits in people and should take steps to stop them holding any power - or we are all in trouble - IMO.