I'm writing on an urgent matter that I think needs to be addressed within Catholic apologetics, namely the widespread Catholic claim that there was no Bible until Pope Damasus gave us the canon of Scripture in AD381. At best, this is a half truth, and at worst this is an implicit heresy and undermines Christianity. While it might score points against Protestants during a Sola Scriptura discussion, it's a bad argument that does far more harm than good.
The problem with the "no Bible until 381" claim is that those who make the claim typically have in their mind that in the early Church - sometime after the Apostles died (~AD80) and up to 300 years later (~AD380) - there was mass confusion as to what books were Scripture and what weren't, such that the Pope had to call a Council to settle the matter by sifting through a massive pile of books, some which were inspired and some which were uninspired, and the "result" was the canon of Scripture. This mindset suggests that the Bible wasn't something passed onto us by Tradition, but rather something that was basically invented. The Pope most certainly did not walk into a library and start reading random books and try to "detect" if this or that book should be in the Bible. In fact, this false 'personally feel out if this book is inspired' method is closer to the Protestant and Mormon approach to the canon of Scripture.