In the 4th century the bible was commisioned to be assembled by the Catholic hierarchy (the 2 mostly involved in the assembly of it were, Irenious and Paphius) for use by the clergy, it in the begining was not intended to be for general use by anyone else. Actually it was, at one point in time, a capital offense to have possesion of one if you were not of the Clergy. That much changed during the reformation periods and such. Much of the currently used bible does not contain the full canon, there are many books that were once considered canonical but have now been removed by the protestants. The catholic bible still has some of the originally removed books in it, but many are still controversal even among the catholic clergy. Many of the books even in the protestent version are controversal, like the book of Revelation and the gospel of John just to name 2, as they were argued, in the begining, that they were not written under spirtual guidence (My opnion is none of it was written under spirtual guidence, but that's another topic) Some of the books, such as all 4 of the Gospels are suspected to not have been written by any of the acredited authors. The only books that can really be traced to actual persons of the bible are some of the books of Paul and a couple others, but even some of those are suspected of fraud.
But to your real Question what does the WTB&TS say about it: quotes from http://quotes.jehovahswitnesses.com/channel.htm
http://quotes.jehovahswitnesses.com/exclusivity.htm
But this is a good quote:
*** Watchtower 1967 October 1 p.587 Finding Freedom with Jehovah's Visible Organization ***
Thus the Bible is an organizational book and belongs to the Christian congregation as an organization, not to individuals , regardless of how sincerely they may believe that they can interpret the Bible. For this reason the Bible cannot be properly understood without Jehovah's visible organization in mind.
Seedy