London 2012 Olympics: 11 days to go - live blog! Coming up today: Heathrow is set to handle a record number of passengers as the first big surge in Olympic athletes arrive in London. The west London airport is expecting to handle 236,955 passengers, breaking the previous record of 233,562 set on 31 July last year. The first Olympic Games lane opens on the M4 to smooth the journey from Heathrow to the athletes' village in Stratford, east London, for this year's competitors. The lanes are available only for members of the "Games family," which includes athletes, their officials and sporting equipment. Ministers are expected to quizzed further on Games security during Commons defence questions from 2.30pm. Shares in the embattled Olympics security contracter G4S have tanked again, down 7.25% in early trading, wiping £400m off its £3.65bn market cap. Chief executive Nick Buckles is under pressure to step down after the company admitted it was unable to provide the 10,400 security guards it was contracted to deliver. G4S has said it will incur a £50m loss on the fiasco, but the reputational impact on the firm is likely to be far more damaging. Day 59 of the Olympic torch relay route takes the travelling jamboree to Brighton & Hove, where it will tour the Royal Pavilion, the famous pier and Sussex cricket ground. Today's news so far: London 2012 chairman Lord Coe has insisted that the security of the Games has not been compromised despite the G4S saga. All this and more here throughout the day as London faces its first big administrative challenge ahead of the Olympics, now just 11 days away.