““These days, most Americans who are unashamedly prejudiced know better than to say so, except to a secure, like-minded audience, given that many people live and work in environments where they can be slapped on the wrist, publicly humiliated, or sacked for saying anything that smacks of an "ism." However, just as it takes mental effort to maintain a prejudice despite conflicting information, it takes mental effort to suppress those negative feelings. Social psychologists Chris Crandall and Amy Eshelman, reviewing the huge research literature on prejudice, found that whenever people are emotionally depleted—when they are sleepy, frustrated, angry, anxious, drunk, or stressed—they become more willing to express their real prejudices toward another group.””
