NEW: Exclusive: 165 defense contractors had initial security clearances revoked last year after further investigation linked the recipients to problematic or illicit activity, Defense Dept

NEW: Exclusive: 165 defense contractors had initial security clearances revoked last year after further investigation linked the recipients to problematic or illicit activity, Defense Dept. report obtained by @NBCNews shows. https://t.co/RxB01hXxgH

— NBC News (@NBCNews) January 24, 2018