The anniversary of Sept. 11 will be painful for Arab and Muslim-Americans - as it will be for all Americans. After the terrorist strikes, Arab and Muslim-Americans became targets for random hate and violence. They became the latest ethnic group to be singled out in an American time of crisis. In the 1850s, Irish immigrants were persecuted. During World War I, German immigrants were suspect. During World War II, Americans of Japanese backgrounds bore the brunt of that conflict. America's legacy of nativism - the intense opposition to an internal minority because of its supposed foreign connections - reared its...