Paying for an overweight bag? Is that Airline Scale Accurate?

If you're already cheesed off about all the extra charges you encounter when flying these days, how ticked off would you be if you found out you got charged extra for checking an "overweight" bag because the airline's scale was inaccurate? The Today Show had an interesting segment yesterday about all the inaccurate airline scales they spotted at four different airports. More... Discount Cigarettes & Tobacco - Flight Tracker: Track Any flight - Priority Bags: No More Lost Luggage