the problem with a democracy is that nothing gets done. if and when a 3rd runway ever gets the go ahead, it will be 25 years out of date.
at least in china, if they need a new airport, they bulldoze the villages , lay the tarmac and it's up and running in 18 months.
if only the residents of sipson could be relocated and move the JCB's in, then heathrow might just be able to cope with demand. let's face it, that's not going to happen !!