(I am no fan of the Atlantic Monthly, but I believe Byron York is a huge asset to his full-time gig at the National Review)
I really feel that any personal animosity existing between RET and BY probably stems from what I observed to be a diminished work output on BY's behalf at TAS in its final 18 months or so. Maybe it was just me, but did anyone else notice that York was being featured less and less in that time period? A far cry from his own 'glory days' at the mag when he was churning out investigative reports with great regularity. Perhaps he and Tyrrell had a parting of ways, so to speak. I could be wrong, but it sure seemed that there was an underlying subtext in BY's article that seemed to say, 'SCREW YOU, BOB!'. Paybacks can be a b*tch, and I think York handed Tyrrell a heaping hepling of it.