When Person of Interest first started in 2011, it focused mostly on corruption in the NYPD and the nebulous "intelligence community" that trained super-ninja character Reese—and then burned him, badly.
As the final season starts, we talk to the show creators and look back on a great sci-fi series.
Root believes humans are mostly running "bad code" and that the Machine will prevent us from destroying ourselves and the world.
With Root's help, the Machine figured out how to escape its government prison and roam freely across a distributed network of hidden server farms.
Even if both the Machine and Samaritan were destroyed, Finch points out that somebody else would invent another AI fairly quickly.
The first four are streaming on Netflix in the US, and the fifth season is streaming on CBS.