jmmilner:
Sadly the notion that an objective truth even exists is rare these days, especially when financial issues and national pride are involved.
I wouldn't go that far - I think it's a far more fundamental truism, not restricted to the world of aviation, that while objective truth does exist it pertains only to hard facts backed up with indisputable evidence. The conclusions one draws from those facts are by their very nature subjective and in many cases can differ wildly.