Atlantic City - Once thought immune to recession, Atlantic City’s casino industry lost more than 2,000 jobs last year as employment fell to its lowest level in two decades. Casinos finished 2008 with 38,585 workers, the first time since 1987 that annual employment sank below 40,000, according to year-end figures released Tuesday by the New Jersey Casino Control Commission. Employment peaked at 51,560 jobs in July 1997.