. >> (translated): they went around piazza mazzini many times, checking that nobody was following us. later, i understood the reasons. i was about to meet a certain person, and it would be very dangerous if anyone came to know that this person had seen me. >> narrator: finally, nuzzi was taken to an apartment. >> and i could see that nobody lived there. there was no furniture. there was nothing. it was an empty apartment, just a corridor that we walked down until we reached a room with only one chair in the middle, and there my source was seated. and we began to talk. >> narrator: the source was paolo gabriele, the pope's butler. he was offering thousands of secret documents from the pope's private office. he said he wanted to protect the pope from the sleaze and corruption that surrounded him. he went on, "i'm afraid the pope doesn't have the strength to expel the money changers from the temple." (applause) (speaking italian) >> narrator: nuzzi broke the story on his program, but he was careful to protect the identity of his source. and over the months that followed, he released more