Almost a year ago to the day, we went along to St Pancras to welcome the opening of the new international terminal with an enormous Yes! banner. Our point was of course that the UK doesn't need new runways, we need new high speed rail links; then, as now, there were at least 100,000 flights a year between Heathrow and destinations easily reachable by train.
Since then, the Tories have not only opposed the third runway at Heathrow, they've also warned companies that they "should be very, very careful" about getting involved in any contract for a third runway as the Tories were "absolutely determined" to stop the project.