Mostly depends on the command. Nearly everyone gets the general Secret clearance and they add on to that on a case by case basis. For instance, Top Secret is given to quite a few people at my command even though it's rarely used. It took me 6 months to get my TS as well.
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"It follows then as certain as that night succeeds the day, that without a decisive naval force we can do nothing definitive, and with it, everything honorable and glorious."
President George Washington
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