'Black Twitter' documentary explores its cultural impact

In its early days, "Black Twitter'' became a driving force in defining pop culture, creating trending hashtags, unforgettable memes and sparking social justice movements. A Hulu docuseries looks at its history, impact and legacy. Amna Nawaz discussed "Black Twitter: A People's History" with director Prentice Penny. It's part of our arts and culture series, CANVAS, and coverage of Race Matters.