Eleven subcontractor employees have been arrested on charges they used fake immigration documents and lied about their pasts to get security clearances at Sikorsky Aircraft. Those arrested included eight illegal aliens who were accused of using false Social Security numbers and forged alien-registration cards to get jobs with as-yet unidentified Sikorsky subcontractors, according to U.S. Attorney Kevin O’Connor. The workers in question had security badges that allowed access to classified and sensitive areas of Sikorsky. None of the suspects were charged with stealing classified materials or being involved in terrorist activities, federal authorities said.