Group including Margaret Atwood, Ian McKellen and Richard Branson sign open letter to free Marwan Barghouti Group including Margaret Atwood, Ian McKellen and Richard Branson sign open letter to free Marwan Barghouti More than 200 leading cultural figures have come together to call for the release of Marwan Barghouti, the jailed Palestinian leader seen as capable of uniting factions and bringing the best hope to the stalled mission of creating a Palestinian state. The prestigious and diverse