Heard today when driving along. Had to check again, but I don't think it was an intentional slip....
"...we're trying to buy british midland..."
Listen yourself to The Bottom Line on Radio 4 listen again
http://www.bbc.co.uk/radio4/progs/listenagain.shtml#b
At the time of posting, it shows last weeks programme when you play, but it has been updated with todays episode. Listen from 4:00 minutes in, the juice is after about 4:30.
(I know there is a rumour thread, but I thought this was a bit of a scoop)