This belief [that people and nations share the same motives and ethics] is … a product of the American psyche, which makes even the most cynical U.S. politicians susceptible to manipulation by those who operate within a different moral framework. […] The open, welcoming, and positive attitude that is the default setting in America is widely regarded in many parts of the world as evidence of gullibility, unseriousness, and naïveté. It is seen, sometimes justifiably, as an attitude that leaves people vulnerable to deception. Not because Americans are stupid, but because their desire to believe in the good of others makes it harder for them to recognize when others are not, in fact, good.