On today's Your Call, we’ll mark the beginning of the 55th annual San Francisco International Film Festival by discussing one of it’s featured films--Jamie Meltzer’s Informant. The film follows the story of Brandon Darby, a charismatic activist turned FBI informant. Since 9/11, the FBI has built a network of more than 15,000 informants. How much impunity does the FBI have for entrapment?