Rafael Behr, Helen Lewis and George Eaton discuss the progress of London's Crossrail project and the possibility of a gradual re-nationalisation of the train network under Labour, Caroline Crampton asks why Lena Dunham's "Girls" is such a lightning rod for criticism, and Ian Steadman tells us about the space probe which has just woken up on a comet millions of miles from the Earth. See acast.com/privacy for privacy and opt-out information.