I wonder where the Heathrow 3rd runway will be built?

I had thought that UK premier Gordon Brown would do anything to win the next general election. However, I have been proved wrong. His government's decision to give a go-ahead to the third runway at Heathrow sacrifices a lot of votes in West London. The possible forthcoming Tory government under David Cameron says that it will cancel the project.
www.searchaccountant.co.uk
The imposition of supposed "green" flights and the previous dissension of ministers such as H. Benn and E. Miliband undermines the approval package. I had hoped that the two ministers would resign over the go-ahead but I expect they like their ministerial cars etc. Resignations would improve their standings. Gordon Brown won't be with us forever.
The go-ahead was sweetened with possible rail projects. These should be planned for
airports such as Stansted and Gatwick, which probably could do with a new runway each. Possibly, the UK is not very good at airport planning. In 2008 traffic was down at these two airports so the current economic case for new runways does not stack up.