In Los Angeles, there's an interactive museum called the Museum of Tolerance with exhibits on the dynamics of racism in America and the history of the Holocaust. The museum has two entrances: one labeled for tolerant people, the other for intolerant. Should you try and walk through the door of tolerance, you'll find it locked, because none of us is entirely without bias. What matters is noticing your own prejudices, those situations in which you react negatively instead of embracing those who are different than you.