The NIV is not based on the Translations from original Greek, but the Roman Catholic approved translations. The NIV is an evangelical Protestant product with many inaccuracies, and some instances of plain old eisegetical "make the Bible mean what I want". Don't blame us Catholics for it; we had nothing to do with it.
The NIV is based upon the Catholic "Latin Vulgate" and not the original greek writings of the apostles, and was funded and arranged AFTER the KJV to counter it.
Seems to me there are much graver things for you to be defending the catholic church against such as the deletion of the book of revelations. Who could blame you, though, it clearly warns against the "Whore that sits on mnay waters, decked in purple and scarlet, and holding a golden cup full of abomination"
