I will have to politely disagree with Bill. The majority who work at CIA have bachelors degrees. Many, however, in the Directorate of Intelligence have Master's degrees. I know very few who went to the top five schools, namely because they can make more money elsewhere. Your Korean skills would be quite coveted; it's not necessarily about being a superman candidate but rather having good timing and making sure your resume has the right keywords that HR types in when searching resumes.
To be quite honest, those willing to wait around and deal with the BS that goes along with working at CIA, NSA, DIA etc.. such as the polygraph harassment and asking permission to leave the country or date a Mexican, tend to be unexceptional. If they didn't drag their feet so long, and hired faster this would help curtail the issue.
Also, you don't need the Guard or any of that. You need a clearance to work there as a contract employee, but for staff employment just apply and they will process you for the clearance.