Philip Dodd talks to psychologist Bertolt Meyer, the model for the world's first complete bionic human and recipient of a bionic arm. Opera Now Editor Ashutosh Khandekhar joins Philip to review Kasper Holten's much anticipated debut at the ROH with Tchaikovsky's Eugene Onegin. A new exhibition at the Natural History Museum in London looks at the positive sides of extinction and palaeontologist Norman Macleod, scientist Georgina Mace and psycho-geographer and poet Iain Sinclair discuss. And Philip speaks to the lawyer Conor Gearty about his new book Liberty and Security.