(Definition of âditchâ from the Cambridge Advanced Learner's Dictionary & Thesaurus Â© Cambridge University Press) See all translations. us â /dÉªtÊ/. âº a long, narrow, open channel dug in the ground, usually at the side of a road or field, used esp. for supplying or removing water.
For a secret clearance in a national security position, the investigation requires agents to interview people who have lived or worked with the candidate at some point in the last seven (or more) years. There are four main types of security clearances for national security positions. These are confidential, secret, top secret (TS), and sensitive compartmented information (SCI).
What are the security clearance levels? Security clearances can be issued by many United States Government agencies, including the Department of Defense (DoD), the Department of Homeland Security, the Department of Energy (DoE), the Department of Justice, and the Central Intelligence Agency.