An ex Cabinet minister today tore into Theresa May's plans to expand Heathrow Airport - warning that taxpayers could be left with a hefty bill if the project goes sour. Justine Greening said the plans include a 'poison pill clause' which leaves the Government carrying all the risk of deal. The ex Education Secretary, whose Putney constituency in west London is vehemently opposed to the third runway, confronted Mrs May about the plans in PMQs. But the PM hit back - insisting the cost of the project will be funded by the private sector alone. Mrs May is set to face a backbench rebellion when the plans to build a third runway are voted on in Parliament. Original Article: http://www.dailymail.co.uk/news/artic... Original Video: http://www.dailymail.co.uk/video/news... Daily Mail Facebook: / dailymail Daily Mail IG: / dailymail Daily Mail Snap: / 8392137033 Daily Mail Twitter: / mailonline Daily Mail Pinterest: http://pinterest.co.uk/dailymail Daily Mail Google+: https://plus.google.com/+DailyMail Get the free Daily Mail mobile app: http://dailymail.co.uk/mobile