The documentary, “Lost in Detention,” will air on the evening of October 18th on PBS. Immigration has been a key issue across the political arena, but despite all the promises, the prospects for comprehensive immigration reform are scarce. Last year, President Obama’s administration set a new record for detaining and deporting undocumented immigrants under the Secure Communities enforcement program.

The program was set up to target and deport dangerous criminal immigrants, but has that always been the case? In her upcoming FRONTLINE documentary “Lost in Detention,” Maria Hinojosa takes an in-depth look at the enforcement of the Secure Communities program, and explores the hidden world of immigration detention. What she and the FRONTLINE Investigative team found is shocking and unimaginable.