David Oyelowo in Selma. Photo courtesy of Paramount Pictures. | ideas.ted.com

In the movie Selma, director Ava DuVernay chronicles the 1965 marches that led to the passage of the Voting Rights Act. She explained why Martin Luther King Jr. is so much more than a symbol or an annual holiday.

The cases of Michael Brown and Eric Garner have rocked the world with questions of systemic racism and injustice. But beyond policy reform, what can ordinary people do to combat racism?

There is no "after Ferguson" | Photo: Jon Lowenstein

In advance of the grand jury verdict, photojournalist Jon Lowenstein talks about what he saw in Ferguson, Missouri. With photos and video.