Could London have a new underground line by 2030? And does it need it?
Plans for a diagonal route from the north east to the south west went on show today, with the catchy title of Crossrail 2.
Our Political Correspondent Simon Harris has more.
More top news
Vlogging from her home in London she has become a YouTube sensation, so successful she has just published her first book.
Health union workers were due to walk out on Thursday in a dispute over pay.
Rail services through Farringdon are being delayed again tonight as engineers carrying out safety checks.