"Okay, first of all, this is an interview book. The pope is being interviewed. He is not engaging his official teaching capacity. This book is not an encyclical, an apostolic constitution, a papal bull, or anything of the kind. It is not published by the Church. It is an interview conducted by a German-language journalist. Consequently, the book does not represent an act of the Church’s Magisterium and does not have the capacity to “change the Vatican’s official stance” on anything. It does not carry dogmatic or canonical force. The book (which is fascinating and unprecedented, though that’s a subject for another post) constitutes the Pope’s personal opinions on the questions he is asked by interviewer Peter Seewald. And, as Pope Benedict himself notes in the book:
It goes without saying that the Pope can have private opinions that are wrong.
I don’t point this out to suggest that what Pope Benedict says regarding condoms is wrong (we’ll get to that in a moment) but to point out the status of private papal opinions. They are just that: private opinions. Not official Church teaching. So let’s get that straight." [source]
Of course, Jimmy Akin is fallible, even possibly with these posted comments. Jimmy is serving as the interpreter of infallibility here.
It's also interesting to watch Roman Catholics get a taste of what it's like to defend quotes either without a context, or taken out of context. Fun, isn't it?