In the Latin Church, all through the Middle Ages we find evidence of hesitation about the character of the deuterocanonicals. There is a current friendly to them, another one distinctly unfavourable to their authority and sacredness, while wavering between the two are a number of writers whose veneration for these books is tempered by some perplexity as to their exact standing, and among those we note St. Thomas Aquinas. Few are found to unequivocally acknowledge their canonicity. (http://www.newadvent.org/cathen/03267a.htm)
And what is ever more perplexing....when confronted by their own sources they somehow attribute our use of the source as inaccurate.
And of even greater amazement is their seeming dismissal of anything in their own sources that contradicts what they've been taught to believe.
So?