M.I.A. (Person of Interest)

"M.I.A." is the 13th episode of the fourth season of the American television drama series Person of Interest. It is the 81st overall episode of the series and is written by Lucas O'Connor and directed by Kevin Bray. It aired on CBS in the United States and on CTV in Canada on February 3, 2015.

The series revolves around a computer program for the federal government known as "The Machine" that is capable of collating all sources of information to predict terrorist acts and to identify people planning them. A team follows "irrelevant" crimes: lesser level of priority for the government. However, their security and safety is put in danger following the activation of a new program named Samaritan. In the episode, Reese and Root head to a small town where Shaw may have been seen but realize that the town is part of a big experiment by Samaritan. Meanwhile, Fusco handles a new number with Officer Silva. The title refers to "Missing in action", a casualty classification assigned to combatants, military chaplains, combat medics, and prisoners of war who are reported missing during wartime or ceasefire.

According to Nielsen Media Research, the episode was seen by an estimated 9.28 million household viewers and gained 1.4/5 ratings share among adults aged 18–49. The episode received highly positive reviews, with critics praising the performances (particularly Amy Acker) and ending.