Step 1: Obtaining a personnel security clearance. A personnel security clearance is an administrative determination by a certified adjudicator that an individual is eligible under national security standards for access to classified information.
Reginald Denny (20 November 1891 â 16 June 1967) was an English stage, film and television actor as well as an aviator and UAV pioneer. He was once an amateur boxing champion of Great Britain.
Henry Allan Gleason (1882â1975) was an American ecologist, botanist, and taxonomist, known for his endorsement of the individualistic or open community concept of ecological succession, and his opposition to Frederic Clements's concept of the climax state of an ecosystem.