(ROUGH CUT ONLY - NO REPORTER NARRATION)<br/> <br />Athletes and Olympic officials began arriving at Heathrow airport on Monday (July 16) ahead of the London 2012 Games.<br/> <br />The airport is gearing up to process more arriving and departing passengers in a single day than it ever has before.<br/> <br />Some 236,955 passengers are expected to travel through the airport on Monday, breaking the previous record of 233,562 set on 31 July, 2011.<br/> <br />Normally the airport would expect 190,000 passengers at this time of year.
