on Thu, 29 Dec 2011, Matthew Dickinson
remarked:
On the tube? Hatton Cross isn't in the free area.

No, although travel via it will be for tube journeys from T123 to T4.

And very indirect. But the remark was aimed at potential free-travelling
airport employees, many of whose workplaces are actually near Hatton
Cross rather than the passenger terminals.
--
Roland Perry