The federal government says it is less expensive to monitor undocumented immigrants through phone calls, at-home check-ins, or electronic monitors than to keep them in jail, says the Miami Herald. Recently, to save money, the government released more than 2,000 undocumented immigrants nationally. The 700 beds at Broward Transitional remain mostly full. It's not clear how many immigrants have been released from the center and are now in the Intensive Supervision Appearance Program. Nationally, there are an average of 21,634 immigrants in the monitoring program daily. Several immigrants with electronic ankle monitors and immigrant rights activists questioned whether the real motivation of monitoring undocumented men and women is to generate more revenue for BI Inc., the private company with the only contract to provide the service. In 2010, a year after BI Inc. obtained the federal contract, the company was bought by GEO Group Inc., a controversial private prisons corporation based in Boca Raton, Fl. GEO Group also owns Broward Transitional Center, the only private detention center for immigrants in Florida.