Originally Posted by
vibrex
Probably Sky News in their Sky Copters with Sky Thermal Cameras searching for hot spots on any 787s

Yes, that's what we thought. Or just hovering on the off-chance something might happen. There weren't just holding - they were there far too long. In fact they crossed a couple of times back and forth.
And I'm not in the FLounge at the moment - I don't need to be at the Flounge to see something at Heathrow.