the deep throat, the person we now know, mark phelps, incredible source. can you enlighten us about that? and tell us how incredibly helpful was he in expediting your reporting? >> deep throat, mark phelps, the deputy director of the fbi, with whom bob met maybe ten times, a dozen at the most, during our watergate reporting, there's too much mythology. we're probably partly to blame for it. what the great thing that phelps did is more than -- more often than not, he confirmed information that we had obtained elsewhere. if you read the book, look at the movie "all the president's men" you see every night we're going out and knocking on doors, and people who worked for richard nixon are saying, there's a secret fund. it paid for this. it did terrible things. and then deep throat would confirm, yes. and maybe add a little more to it. but the great thing that he did was, for us, is gave us a sense that we were right. you know, we had what we called the two-source rule. then it came to be a three source rule. we had these things nailed down. and yes, deep throa