On Start the Week Andrew Marr talks to Gary Younge about how nationalism and patriotism shape our identity, while Jonathan Fenby explores how the war time leader, Charles de Gaulle shaped a vision for France which has had lasting impact. The curator Jane Alison takes us on a bizarre tour of the Surreal House, where architecture delves into the dark corners and the world of the fantastical. And the science writer Rebecca Skloot reveals the story of Henrietta Lacks, a woman who was vitally important for the advancement of medicine, but whose family could never afford health insurance. Producer: Katy Hickman.