The Secure Communities Program was a U.S. immigration enforcement initiative designed to identify and deport undocumented immigrants who had been arrested for crimes. Implemented after 2008, it linked local law enforcement agencies with federal immigration authorities to facilitate the identification of individuals in the criminal justice system who were undocumented. The program has faced significant criticism for fostering racial profiling, particularly against Latino and Muslim communities, in the post-9/11 climate of heightened security and suspicion.