There remain many unanswered questions about Edward Snowden, the Booz Allen Hamilton employee who exposed the N.S.A.’s phone and internet surveillance programs.
Snowden had “top-secret” security clearance, but he is far from alone in this high-level clearance. There are more than 4.9 million individuals who have security clearance and over 1.4 million of those are “top-secret.”
John Schindler, professor of national security affairs at the U.S. Naval War College and a former N.S.A. intelligence analyst discusses, how security clearance works, and the risks associated with so many workers having access to secret information.