The life and activism of Rosa Parks beyond her Montgomery bus boycott

Many know Rosa Parks for her iconic bus boycott in Montgomery, but few know the years of dedicated activism that led up to that moment. CUNY Brooklyn College professor and author of "The Rebellious Life of Mrs. Rosa Parks," Jeanne Theoharis, shines a light on Parks' lifelong dedication to civil rights. Theoharis spoke to CBS' Tanya Rivero about the importance of understanding her full story.