Person of Interest Producers Break Down Shaw's Big Return and Reunion with Root
IGN - By Matt Fowler
http://www.youtube.com/watch?v=Sxt1QxAlELo"...Within this simulation too came Shaw's big reunion with Root. Their first real moments together after Shaw sacrificed herself back in "If-Then-Else." And there were some lustful, loving moments between them as the show went full tilt with their years-in-the-making sex scene. Of course, with the extra bitter backstab being that none of the happened within the real POI world - just in Shaw's VR headset....
Even though it turned out not to be real, Root and Shaw had a huge moment on the episode after Shaw, shaking off pesky subway brain surgery, made a move on Root that took them both to bed. With a quick stop at the kitchen table....
At the end of the simulation, Shaw chooses to end her own life instead of killing Root. A sweeping romantic gesture within the world of Person of Interest. "Emotions are hard for Shaw," Plageman said. "So we thought one of the best ways to show Root her feelings, to display how she feels inside, was to have her continuously not kill her in these simulations, over and over. She turns the gun on herself. There's something even more powerful to that."...

"Person Of Interest took the return of Shaw and all of the expectations that came with it as a personal challenge and decided to just go ahead and knock this episode out of the park. The subtitle of “6,741” should be “…Well That Escalated Quickly.” The M.V.P. of this episode and life itself is Sarah Shahi. The brief return of Taraji P. Henson’s Agent Carter is one of the best episodes of the series, and “6,741” is a worthy entry to stand by its side. This episode is successful because it’s ambitious but focused. It delves into almost every genre that Person Of Interest has tackled, but never devolves into chaos. The storytelling is breathlessly efficient, moving, suspenseful, and twisty; the character of Shaw and Shahi’s performance anchor the entire enterprise, ensuring that it stays grounded and on-target. If that weren’t enough, this is one of the most well-executed episodes of a particularly well-executed show in regards to details. The direction is artful; the lighting is divine; the score is on point; the flashback montages are terrifying. In summary, this one should automatically go on everyone’s highlight reel...
http://www.avclub.com/tvclub/once-again-characters-long-awaited-return-inspires-236882