The exhibition of English painter J.M.W. Turner’s masterpiece Slave Ship sparks debate at London’s Royal Academy of Arts. The large canvas recounts the voyage of the slave ship Zong when the captain ordered 132 enslaved Africans thrown alive into the sea to save drinking water and to collect insurance for their deaths. (pic: detail of the painting showing chains and hands in the sea). Acknowledging the painting’s power, some critics argue that human tragedy was exploited by the artist.