For example, could they significantly change voting preference? Why wouldn't they? Do we not respond to political messages with our "reward centre"? Will we find political charisma more or less entrancing? Will we find calls for vengeance and punishment more or less attractive? Does tinkering with desire and reward dull our emotional response? Will we find compassionate appeals to help less fortunate more or less attractive? Does "enhanced control" manifest as a political preference for rational altruism or as machiavellian selfishness?