For many North Americans, Arab Americans are invisible, recalled only when words like terrorism or anti-American sentiments arise. However, people of Arab descent have been contributing to U. S. an da Canadian culture since the 1870s in fields as diverse as literature, science, politics, medicine, and commerce -- witness surgeon Michael DeBakey, former Oregon governor Victor Atiyeh, consumer advocate Ralph Nader, and Canadian M.P. Mac Harb. Yet while...