Secure Communities, a federal immigration enforcement program, is once again at the center of a debate, this time about the possibility that local law enforcement should be able to opt out of the program. # According to Immigration and Customs Enforcement, the program allows local law enforcement agencies to compare the fingerprints of every person arrested and booked with FBI criminal history records and Department of Homeland Security immigration records. But critics of the program point to data from Immigration and Customs enforcement, which they say shows that Secure Communities leads to the detention and deportation of people who are not criminals