Further to your answer of 18-Dec-2013 "Yes. I received a reply from Colin Matthews on 11 December. Both he and National Air Traffic Services (NATS) report that there have been no flightpath or airspace changes in the vicinity of Barnet. This reinforces my view that Heathrow's negative effects are felt far and wide across London, and many miles outside the 57dB noise contour the airport claims best represents those affected. I was concerned to read Mr Matthews' statement that 'Heathrow impacts far fewer London residents than has been the case in the past'. While this may be true in the longer term, the Government's own figures show that the number affected has increased in the last 10 years. I intend to respond to Mr Matthews to make these matters clear, and am more than happy to publish in full any correspondence I have with the airport and NATS on this vital matter." Have you now responded to Mr Matthews, has he now replied and will you now make public your correspondence?