Thank you all for your help.
I am reading Misquoting Jesus by Bart Ehrman. That's how I discovered the controversy. I guess is not just a controversy between JW's and the rest, but a controversy even among other religions and bible scholars.
As a lover of history, and a "hater" of religion, I find it ironic that I am quite immersed in the Bible textual criticism and history of Christianity. It is such an interesting subject. Interestingly, most devout christians know little or nothing about it. Here I am, an atheist, ar agnostic, or whatever I am, reading at 1:30 a.m. with great interest about old bible manuscripts, scribes of antiquity and ante-nicene fathers, while my JW's brothers with their 25 plus years of reading the Bible know squat about the subject. Oh my God, the irony!