A Royal Jordanian airways jet arrives over the top of houses to land at Heathrow Airport in west London August 28, 2012. Britain’s transport minister said on Tuesday she would probably resign if the government gave in to pressure to expand London’s Heathrow airport. Conservative Prime Minister David Cameron’s government has ruled out building a third runway at Heathrow before the next election, in part to appease the junior coalition partner, the Liberal Democrats, but the issue has returned to the agenda with the economy still stuck in recession. REUTERS/Stefan Wermuth (BRITAIN – Tags: BUSINESS TRAVEL POLITICS TRANSPORT)