Saturday inteview: John Stewart, veteran transport campaigner

Next week, world crises permitting, No 10 will give formal permission for an application to be made to build a third runway at Heathrow airport. Environment groups will howl, the village of Sipson will prepare to be wiped off the map, and airport operator BAA and a few construction companies may crack open the champers at the prospect of the world's busiest international airport growing by as much as 50% to handle an extra 600 flights a day. But one veteran transport campaigner will just hitch up...