https://www.youtube.com/watch?v=jD01M8eFOJ4&feature=youtu.be&t=1h15m49s
More Security Clearance info:
EO 13567 amends EO 12968 but does not remove the requirement for termination after access is no longer required.
https://fas.org/irp/offdocs/eo/eo-13467.htm