By Mike Wells

Security precautions for London 2012 include the construction of a 17.5 km, 5,000volt electric fence, topped with 900 daylight and night vision surveillance cameras spaced at 50 metre intervals. On first sight of the fence you could be forgiven for thinking you had slipped through a wormhole in the space-time continuum to find yourself on the perimeter of a Soviet era Gulag.

The London Assembly commissioned research into the long-term benefits of hosting the Olympic Games and Paralympic Games. The research, produced by London East Research Institute at the University of East London, examines the lasting impact of hosting the summer Games had on Barcelona, Atlanta, Sydney and Athens, measuring their achievements in nine key areas including employment, urban renewal, skills and sports participation.

The new stadium has a 60,000-seat capacity. Arsenal fans are demanding an end to what they say is match-day transport chaos at the club's new stadium. Supporters complain it can take up to an hour to get away after matches at the 60,000-seat Emirates Stadium. They said a decision not to invest in upgrading Holloway Road and Drayton Park stations had been a mistake.

Ken Livingstone has issued a "firm guarantee" that there will be no increase to London Council Tax bills to fund the 2012 Olympic and Paralympic Games.

Speaking to Vanessa Feltz on BBC Radio London earlier today the Mayor said: