[RobRoy]

There is lots of discussion on this topic, from both sides.

Here is one interesting take, but there are many others. http://www.direct.ca/trinity/john8.html

Also, notice from this particular article:

"This passage can be found in translations that date from the second century. This can be confirmed by the comments on this passage by the Early Church teachers which range from Didascalia (third century) to Saint Augustine (430 AD). Saint Augustine gives us a little more insight into the problems of this passage by many of his time..."

However, for the curious, it goes even deeper than this. Enjoy!

[Junior]

I came across that site in my research. You don't suppose they have a sacred cow they're trying to protect, do you? Most dispassionate sources give the earliest inclusion of that story at around the 4th century. I could recommend a couple of good books for you on this subject, if you'd like.