I've read some very dismissive comments on here about the fact that the lack of fuel could not have played a part in the engine failure, or that this would not happen at BA. I have been on a BA 777 flight to Chicago when we diverted to Milwaukee because the aircraft had insufficient fuel to join the hold during a storm over Chicago. On that particular flight there was no provision for slack - probably in the name of cost cutting. Or was this simply a serious miscalculation on fuel required?