From the Opium Wars of the 1840s, to the Red Scare of the 1940s, through the Tiananmen Square "massacre" of 1989, and the Wen Ho Lee "espionage case" of 2000, Chinese-American relations have swung like a pendulum throughout the years. Now in its fourth edition and thoroughly revised and updated, The United States and China: Into the Twenty-First Century looks at more than a century of Chinese-American turmoil from a dual perspective, examining how two dramatically different cultures interacted, cooperated, and collided.