i add a statement from wikipedia, since it is a most acceptable form of information via the net (http://en.wikipedia.org/wiki/Speed_of_light)

"Most individuals are accustomed to the addition rule of velocities: if two cars approach each other from opposite directions, each travelling at a speed of 50 kilometres per hour (31 miles per hour), one expects that each car will perceive the other as approaching at a combined speed of 50 + 50 = 100 km/h (62 mph) to a very high degree of accuracy.

At velocities at or approaching the speed of light, however, it becomes clear from experimental results that this rule does not apply. Two spaceships approaching each other, each travelling at 90% the speed of light relative to some third observer between them, do not perceive each other as approaching at 90% + 90% = 180% the speed of light; instead they each perceive the other as approaching at slightly less than 99.5% the speed of light."

Then my thought of reason is that people dont see that that AE trying to measure something that is 180% over the term of the measurement with something that can only equal 100% of it is wrong, yet i could be wrong