Here's some scoop on Person of Interest from TVGuide's Adam Bryant's Mega Buzz column, which was posted on 9/30/14.
Is there any chance knowledge of the Machine could go public on Person of Interest? — Tyler
I had the exact same thought, particularly after last season's finale when Finch seemed almost relieved to be confessing its existence during the "trial." (His attitude about the Machine this season seemed unchanged.) But executive producer Jonathan Nolan insists that Finch's faith will be restored. "Finch is kind of stuck in this shadow world, in which you have this group of operators who understand exactly what's happening," Nolan says. "We always said our show works best in the shadows. The Machine is the world's last secret and Finch is kind of stuck with it."
Link to the full article:Mega Buzz: Walking Dead's Villain, a Grey's Secret and Fire's Replacement - Today's News: Our Take | TVGuide.com