There has been much discussion about the wording of the Creed, and some question of the seriousness of exact wording. Indeed, it was serious enough to convene an ecumenical council for this purpose. In 2011, I wrote a series of commentaries in anticipation of the release of the newly-translated Roman Missal entitled "Guided Missal." 

http://manwithblackhat.blogspot.com/2011/12/guided-missal-series.html

In this ten-part series, Part 2 deals with the issue of translation in general, and Part 5 with the Liturgy of the Word in particular, including the Creed. The need for accuracy in translation is expounded upon here. Also included is the origin of the expression "It doesn’t make an iota of a difference," and why, in this case, it does.