Moving on and getting out of all this ......
The BA board must be considering their route forward.
Walsh is obviously finished but the question for the board is who to replace him with. Can't be shot of him until someone new is in place, because after this Walsh will have to be gone the day the announcement is made. Names in the hat anyone? Is Barbara Cassini available ?
Secondy Broughton has to tell Gordon Brown directly (as the current Secretary for Transport is the worst plonker in that post since Nicholas Ridley - hmmm, no, actually she's worse) that stupid nonsenses by the DfT, in particular security rules that achieve nothing for security, have been a key contributor to all this. But Brown will not be receptive unless Broughton tells him what he is going to do from the BA side as well.
Brown can then get the chairman of Ferrovial over to tell them that unless they change both spending and attitudes on what they do they can count themselves out of the UK market for a long tme, both BAA and their various construction companies (much of whose work is for government bodies).
It is obviously time also for BA
PR (who write about a fantasy world) to be pointed at pastures new as well.