Immigration was one of the most controversial social issues during the 20th century, as debates intensified over whether immigrants adversely impact life for American citizens. Through a narrative-driven pro/con format - supported by relevant facts, quotes, and anecdotes - this book examines controversial issues stemming from historic events. Topics include: Do Immigrants Adversely Impact the American Economy? Do Immigrants Worsen Crime? Do Immigrants Threaten American Culture and Values? Is There Room for New Immigrants In 20th Century America?