Frank,
I would love to engage with the points you have made but fear that one of us (probably me) would end up victims of the purge.
You - beacuse this is not your "normal" forum (I sympathise because the standard of debate on the Heathrow forum has recently descended into childlike fantasy mixed in with some rather more unsavoury stuff).
Me - because I don't agree with LHR expansion at any cost - which seems to be against (presumably unofficial) pprune policy.
Sorry to disappoint.
Have a good weekend.
Dobbo