Martin Luther King Jr.'s sermons frequently relied on improvisation - King drew on sources and references that were limited only by his imagination and memory. It’s a gift on full display in King's 'I Have A Dream' speech, but it also conflicts with the intellectual property laws that have been strenuously used by his estate since his death. OTM producer Jamie York speaks with Drew Hansen, Keith Miller, Michael Eric Dyson and Lewis Hyde about King, imagination and the consequences of limiting access to art and ideas.