The Press and TV Has got into this all week one paper even
posted maps and Aircraft Registration when they should know better but then it sells papers.
It always amuses me when the debate about these flights being "hush hush" resurfaces periodically.
If they really are that sensitive, one wonders why Heathrow regularly publish the flightpaths in question on their WebTrak site. I did suggest to them a few months ago that if they were, it might be prudent to suppress them, but I didn't get any response.
Here's the one in question from earlier this week, for example:
WebTrak My Neighbourhood - Home Locator: London Heathrow Airport