Who should take responsibility for curbing online hate?

Violent hate crimes are on the rise in the U.S. and across the globe. As a result, the ways in which hate groups use social media to threaten, galvanize and radicalize are drawing new scrutiny, including from Congress on Tuesday. Amna Nawaz reports on the Capitol Hill discussion and talks to Kristen Clarke of the Lawyers’ Committee for Civil Rights Under Law, a national civil rights organization.