ÀÏ°ÄÃÅ¿ª½±½á¹û

Last year the Department of Homeland Security — the highest number to date.

Tomorrow, Frontline takes a penetrating look at the Obama administration’s vastly expanded immigration net, going deep inside the hidden world of immigration detention in "Lost in Detention."

ÀÏ°ÄÃÅ¿ª½±½á¹û Executive Director Anthony Romero talks with Frontline correspondent Maria Hinojosa, illustrating the widespread abuses committed inside an immense lock-up system that subjects scores of individuals to unnecessary imprisonment every year. Univision aired an interview with one of the immigrants profiled in "Lost in Detention," Roxana Garcia, last month:

Please note that by playing this clip You Tube and Google will place a long-term cookie on your computer. Please see on their website and on theirs to learn more. To view the ÀÏ°ÄÃÅ¿ª½±½á¹û's privacy statement, click here.

airs Tuesday, Oct. 18, 2011, at 9 P.M. ET on PBS.

Learn more about immigration detention: Sign up for breaking news alerts, , and .