Mark Bradford transforms materials scavenged from the street into wall-sized collages and installations that respond to the impromptu networks—underground economies, migrant communities, or popular appropriation of abandoned public space—that emerge within a city. Bradford's work is informed by his personal background as a third-generation merchant in Los Angeles and by the traditions of abstract painting developed worldwide in the twentieth century. Mark Bradford is featured in the Season 4 episode "Paradox" of the Art21 series "Art in the Twenty-First Century". For more information: http://www.art21.org

Chris Matthews shreds right wing talker Kevin James on Hardball who can't tell him what Neville Chamberlain did wrong even though he's trying to use Chamberlain as a right wing talking point.