Gwen Ifill moderates a discussion about Freedom Summer

Fifty years ago, a campaign organized by civil rights groups sent hundreds of young people into the heart of Mississippi to register black voters. It was called Freedom Summer.

The Newseum marked the 50th anniversary of Freedom Summer with a special program featuring an extended preview of the new "American Experience" film "Freedom Summer", produced, written and directed by Standley Nelson. "Freedom Summer" tells the story of the 10 memorable weeks in 1964 when more than 700 student volunteers from around the country joined organizers and local civil rights leaders in a historic effort to shatter the foundations of white supremacy in Mississippi. The film debuts on PBS on June 24 at 9PM.

Gwen Ifill moderated a discussion at the Newseum with Stanley Nelson, the producer of the "American Experience" film "Freedom Summer"; civil rights leader Bob Moses; and Rita Schwerner Bender, whose husband, Michael Schwerner, was one of three Freedom Summer workers murdered by members of the Ku Klux Klan.