BBC News reports that the Mayor of London, Boris Johnson, has today stated that the proposed 24-hour Night Tube service is not "absolutely critical" to the function of the city. Which is fair enough because, um, it's not absolutely critical. (And besides, The Jam showed us that being down in the tube station even at midnight is a scary thing indeed).

Speaking to LBC Radio, Johnson said:

"I’ve got to tell you this is something that the city of London has done without for 150 years. What I won’t do is pay an unreasonable price for it, which Londoners would feel in their fares.

"There’s a very good deal on the table. I just hope that members of the Tube unions will get a chance to look at it. No-one will work more hours than they do today. Drivers have the same number of weekends as now.

"I want you to know that this is something I think we should have but – I hope my attitude is clear – it is not something that I regard as absolutely critical."

The service was due to start on weekends from 12th September, on London's Jubilee, Victoria, Piccadilly, Central and Northern lines, however the launch has been delayed by Tube workers striking against working night shifts.